Home / 86,475.20-129,634.40-31,058.24

Finding the Fourth Proportional to 86,475.20, 129,634.40 and 31,058.24

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Solution

The fourth proportional to 86,475.20, 129,634.40 and 31,058.24 is: 46,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,475.20 : 129,634.40 = 31,058.24 : x
  2. Step 2: Convert to fraction form
    86,475.20/129,634.40 = 31,058.24/x
  3. Step 3: Cross multiply
    86,475.20x = 129,634.40 × 31,058.24
  4. Step 4: Simplify right side
    86,475.20x = 4,026,216,307.46
  5. Step 5: Solve for x
    x = 4,026,216,307.46/86,475.20
  6. Step 6: Final answer
    x = 46,559.20

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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.