Home / 85,722.86-128,590.45-29,562.16

Finding the Fourth Proportional to 85,722.86, 128,590.45 and 29,562.16

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Solution

The fourth proportional to 85,722.86, 128,590.45 and 29,562.16 is: 44,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,722.86 : 128,590.45 = 29,562.16 : x
  2. Step 2: Convert to fraction form
    85,722.86/128,590.45 = 29,562.16/x
  3. Step 3: Cross multiply
    85,722.86x = 128,590.45 × 29,562.16
  4. Step 4: Simplify right side
    85,722.86x = 3,801,411,061.99
  5. Step 5: Solve for x
    x = 3,801,411,061.99/85,722.86
  6. Step 6: Final answer
    x = 44,345.36

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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.