Home / 254,520.30-381,781.57-86,041.52

Finding the Fourth Proportional to 254,520.30, 381,781.57 and 86,041.52

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Solution

The fourth proportional to 254,520.30, 381,781.57 and 86,041.52 is: 129,062.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,520.30 : 381,781.57 = 86,041.52 : x
  2. Step 2: Convert to fraction form
    254,520.30/381,781.57 = 86,041.52/x
  3. Step 3: Cross multiply
    254,520.30x = 381,781.57 × 86,041.52
  4. Step 4: Simplify right side
    254,520.30x = 32,849,066,590.79
  5. Step 5: Solve for x
    x = 32,849,066,590.79/254,520.30
  6. Step 6: Final answer
    x = 129,062.66

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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.