Home / 86,502.84-129,704.04-42,073.56

Finding the Fourth Proportional to 86,502.84, 129,704.04 and 42,073.56

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Solution

The fourth proportional to 86,502.84, 129,704.04 and 42,073.56 is: 63,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,502.84 : 129,704.04 = 42,073.56 : x
  2. Step 2: Convert to fraction form
    86,502.84/129,704.04 = 42,073.56/x
  3. Step 3: Cross multiply
    86,502.84x = 129,704.04 × 42,073.56
  4. Step 4: Simplify right side
    86,502.84x = 5,457,110,709.18
  5. Step 5: Solve for x
    x = 5,457,110,709.18/86,502.84
  6. Step 6: Final answer
    x = 63,085.91

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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.