Home / 85,937.20-128,874.92-29,762.18

Finding the Fourth Proportional to 85,937.20, 128,874.92 and 29,762.18

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Solution

The fourth proportional to 85,937.20, 128,874.92 and 29,762.18 is: 44,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,937.20 : 128,874.92 = 29,762.18 : x
  2. Step 2: Convert to fraction form
    85,937.20/128,874.92 = 29,762.18/x
  3. Step 3: Cross multiply
    85,937.20x = 128,874.92 × 29,762.18
  4. Step 4: Simplify right side
    85,937.20x = 3,835,598,814.31
  5. Step 5: Solve for x
    x = 3,835,598,814.31/85,937.20
  6. Step 6: Final answer
    x = 44,632.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.