Home / 74,638.80-103,000.68-40,646.88

Finding the Fourth Proportional to 74,638.80, 103,000.68 and 40,646.88

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Solution

The fourth proportional to 74,638.80, 103,000.68 and 40,646.88 is: 56,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,638.80 : 103,000.68 = 40,646.88 : x
  2. Step 2: Convert to fraction form
    74,638.80/103,000.68 = 40,646.88/x
  3. Step 3: Cross multiply
    74,638.80x = 103,000.68 × 40,646.88
  4. Step 4: Simplify right side
    74,638.80x = 4,186,656,279.88
  5. Step 5: Solve for x
    x = 4,186,656,279.88/74,638.80
  6. Step 6: Final answer
    x = 56,092.22

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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.