Home / 86,520.15-129,780.23-36,587.30

Finding the Fourth Proportional to 86,520.15, 129,780.23 and 36,587.30

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Solution

The fourth proportional to 86,520.15, 129,780.23 and 36,587.30 is: 54,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,520.15 : 129,780.23 = 36,587.30 : x
  2. Step 2: Convert to fraction form
    86,520.15/129,780.23 = 36,587.30/x
  3. Step 3: Cross multiply
    86,520.15x = 129,780.23 × 36,587.30
  4. Step 4: Simplify right side
    86,520.15x = 4,748,307,377.24
  5. Step 5: Solve for x
    x = 4,748,307,377.24/86,520.15
  6. Step 6: Final answer
    x = 54,880.94

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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.