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Finding the Fourth Proportional to 56,572.51, 84,858.99 and 19,132.78

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Solution

The fourth proportional to 56,572.51, 84,858.99 and 19,132.78 is: 28,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,572.51 : 84,858.99 = 19,132.78 : x
  2. Step 2: Convert to fraction form
    56,572.51/84,858.99 = 19,132.78/x
  3. Step 3: Cross multiply
    56,572.51x = 84,858.99 × 19,132.78
  4. Step 4: Simplify right side
    56,572.51x = 1,623,588,386.69
  5. Step 5: Solve for x
    x = 1,623,588,386.69/56,572.51
  6. Step 6: Final answer
    x = 28,699.25

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.