Home / 57,432.24-86,140.80-19,984.32

Finding the Fourth Proportional to 57,432.24, 86,140.80 and 19,984.32

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Solution

The fourth proportional to 57,432.24, 86,140.80 and 19,984.32 is: 29,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,432.24 : 86,140.80 = 19,984.32 : x
  2. Step 2: Convert to fraction form
    57,432.24/86,140.80 = 19,984.32/x
  3. Step 3: Cross multiply
    57,432.24x = 86,140.80 × 19,984.32
  4. Step 4: Simplify right side
    57,432.24x = 1,721,465,312.26
  5. Step 5: Solve for x
    x = 1,721,465,312.26/57,432.24
  6. Step 6: Final answer
    x = 29,973.85

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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.