Home / 56,190.42-84,297.95-21,130.07

Finding the Fourth Proportional to 56,190.42, 84,297.95 and 21,130.07

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Solution

The fourth proportional to 56,190.42, 84,297.95 and 21,130.07 is: 31,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,190.42 : 84,297.95 = 21,130.07 : x
  2. Step 2: Convert to fraction form
    56,190.42/84,297.95 = 21,130.07/x
  3. Step 3: Cross multiply
    56,190.42x = 84,297.95 × 21,130.07
  4. Step 4: Simplify right side
    56,190.42x = 1,781,221,584.36
  5. Step 5: Solve for x
    x = 1,781,221,584.36/56,190.42
  6. Step 6: Final answer
    x = 31,699.74

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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.