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Finding the Fourth Proportional to 62,100.80, 85,652.88 and 39,420.08

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Solution

The fourth proportional to 62,100.80, 85,652.88 and 39,420.08 is: 54,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,100.80 : 85,652.88 = 39,420.08 : x
  2. Step 2: Convert to fraction form
    62,100.80/85,652.88 = 39,420.08/x
  3. Step 3: Cross multiply
    62,100.80x = 85,652.88 × 39,420.08
  4. Step 4: Simplify right side
    62,100.80x = 3,376,443,381.83
  5. Step 5: Solve for x
    x = 3,376,443,381.83/62,100.80
  6. Step 6: Final answer
    x = 54,370.37

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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.