Home / 86,281.02-129,367.92-36,335.40

Finding the Fourth Proportional to 86,281.02, 129,367.92 and 36,335.40

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Solution

The fourth proportional to 86,281.02, 129,367.92 and 36,335.40 is: 54,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,281.02 : 129,367.92 = 36,335.40 : x
  2. Step 2: Convert to fraction form
    86,281.02/129,367.92 = 36,335.40/x
  3. Step 3: Cross multiply
    86,281.02x = 129,367.92 × 36,335.40
  4. Step 4: Simplify right side
    86,281.02x = 4,700,635,120.37
  5. Step 5: Solve for x
    x = 4,700,635,120.37/86,281.02
  6. Step 6: Final answer
    x = 54,480.52

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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.