Home / 86,598.42-129,793.14-42,158.58

Finding the Fourth Proportional to 86,598.42, 129,793.14 and 42,158.58

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Solution

The fourth proportional to 86,598.42, 129,793.14 and 42,158.58 is: 63,187.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,598.42 : 129,793.14 = 42,158.58 : x
  2. Step 2: Convert to fraction form
    86,598.42/129,793.14 = 42,158.58/x
  3. Step 3: Cross multiply
    86,598.42x = 129,793.14 × 42,158.58
  4. Step 4: Simplify right side
    86,598.42x = 5,471,894,476.14
  5. Step 5: Solve for x
    x = 5,471,894,476.14/86,598.42
  6. Step 6: Final answer
    x = 63,187.00

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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.