Home / 56,867.80-85,316.82-19,427.81

Finding the Fourth Proportional to 56,867.80, 85,316.82 and 19,427.81

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Solution

The fourth proportional to 56,867.80, 85,316.82 and 19,427.81 is: 29,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,867.80 : 85,316.82 = 19,427.81 : x
  2. Step 2: Convert to fraction form
    56,867.80/85,316.82 = 19,427.81/x
  3. Step 3: Cross multiply
    56,867.80x = 85,316.82 × 19,427.81
  4. Step 4: Simplify right side
    56,867.80x = 1,657,518,968.76
  5. Step 5: Solve for x
    x = 1,657,518,968.76/56,867.80
  6. Step 6: Final answer
    x = 29,146.88

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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.