Home / 90,859.78-136,231.35-59,658.58

Finding the Fourth Proportional to 90,859.78, 136,231.35 and 59,658.58

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Solution

The fourth proportional to 90,859.78, 136,231.35 and 59,658.58 is: 89,449.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,859.78 : 136,231.35 = 59,658.58 : x
  2. Step 2: Convert to fraction form
    90,859.78/136,231.35 = 59,658.58/x
  3. Step 3: Cross multiply
    90,859.78x = 136,231.35 × 59,658.58
  4. Step 4: Simplify right side
    90,859.78x = 8,127,368,892.48
  5. Step 5: Solve for x
    x = 8,127,368,892.48/90,859.78
  6. Step 6: Final answer
    x = 89,449.58

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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.