Home / 86,788.52-130,135.94-39,377.74

Finding the Fourth Proportional to 86,788.52, 130,135.94 and 39,377.74

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Solution

The fourth proportional to 86,788.52, 130,135.94 and 39,377.74 is: 59,045.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,788.52 : 130,135.94 = 39,377.74 : x
  2. Step 2: Convert to fraction form
    86,788.52/130,135.94 = 39,377.74/x
  3. Step 3: Cross multiply
    86,788.52x = 130,135.94 × 39,377.74
  4. Step 4: Simplify right side
    86,788.52x = 5,124,459,209.98
  5. Step 5: Solve for x
    x = 5,124,459,209.98/86,788.52
  6. Step 6: Final answer
    x = 59,045.36

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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.