Home / 71,806.18-99,088.61-39,534.50

Finding the Fourth Proportional to 71,806.18, 99,088.61 and 39,534.50

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Solution

The fourth proportional to 71,806.18, 99,088.61 and 39,534.50 is: 54,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,806.18 : 99,088.61 = 39,534.50 : x
  2. Step 2: Convert to fraction form
    71,806.18/99,088.61 = 39,534.50/x
  3. Step 3: Cross multiply
    71,806.18x = 99,088.61 × 39,534.50
  4. Step 4: Simplify right side
    71,806.18x = 3,917,418,652.05
  5. Step 5: Solve for x
    x = 3,917,418,652.05/71,806.18
  6. Step 6: Final answer
    x = 54,555.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.