Home / 74,431.08-102,714.18-40,438.83

Finding the Fourth Proportional to 74,431.08, 102,714.18 and 40,438.83

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Solution

The fourth proportional to 74,431.08, 102,714.18 and 40,438.83 is: 55,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431.08 : 102,714.18 = 40,438.83 : x
  2. Step 2: Convert to fraction form
    74,431.08/102,714.18 = 40,438.83/x
  3. Step 3: Cross multiply
    74,431.08x = 102,714.18 × 40,438.83
  4. Step 4: Simplify right side
    74,431.08x = 4,153,641,263.61
  5. Step 5: Solve for x
    x = 4,153,641,263.61/74,431.08
  6. Step 6: Final answer
    x = 55,805.20

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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.