Home / 59,909.31-89,874.54-20,457.18

Finding the Fourth Proportional to 59,909.31, 89,874.54 and 20,457.18

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Solution

The fourth proportional to 59,909.31, 89,874.54 and 20,457.18 is: 30,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,909.31 : 89,874.54 = 20,457.18 : x
  2. Step 2: Convert to fraction form
    59,909.31/89,874.54 = 20,457.18/x
  3. Step 3: Cross multiply
    59,909.31x = 89,874.54 × 20,457.18
  4. Step 4: Simplify right side
    59,909.31x = 1,838,579,642.20
  5. Step 5: Solve for x
    x = 1,838,579,642.20/59,909.31
  6. Step 6: Final answer
    x = 30,689.38

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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.