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Finding the Fourth Proportional to 62,210.50, 85,850.49 and 39,854.50

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Solution

The fourth proportional to 62,210.50, 85,850.49 and 39,854.50 is: 54,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,210.50 : 85,850.49 = 39,854.50 : x
  2. Step 2: Convert to fraction form
    62,210.50/85,850.49 = 39,854.50/x
  3. Step 3: Cross multiply
    62,210.50x = 85,850.49 × 39,854.50
  4. Step 4: Simplify right side
    62,210.50x = 3,421,528,353.71
  5. Step 5: Solve for x
    x = 3,421,528,353.71/62,210.50
  6. Step 6: Final answer
    x = 54,999.21

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1.5x scale

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.