Home / 86,335.02-129,442.20-38,277.48

Finding the Fourth Proportional to 86,335.02, 129,442.20 and 38,277.48

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Solution

The fourth proportional to 86,335.02, 129,442.20 and 38,277.48 is: 57,389.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,335.02 : 129,442.20 = 38,277.48 : x
  2. Step 2: Convert to fraction form
    86,335.02/129,442.20 = 38,277.48/x
  3. Step 3: Cross multiply
    86,335.02x = 129,442.20 × 38,277.48
  4. Step 4: Simplify right side
    86,335.02x = 4,954,721,221.66
  5. Step 5: Solve for x
    x = 4,954,721,221.66/86,335.02
  6. Step 6: Final answer
    x = 57,389.47

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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.