Home / 86,317.03-129,475.95-30,156.90

Finding the Fourth Proportional to 86,317.03, 129,475.95 and 30,156.90

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Solution

The fourth proportional to 86,317.03, 129,475.95 and 30,156.90 is: 45,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,317.03 : 129,475.95 = 30,156.90 : x
  2. Step 2: Convert to fraction form
    86,317.03/129,475.95 = 30,156.90/x
  3. Step 3: Cross multiply
    86,317.03x = 129,475.95 × 30,156.90
  4. Step 4: Simplify right side
    86,317.03x = 3,904,593,276.56
  5. Step 5: Solve for x
    x = 3,904,593,276.56/86,317.03
  6. Step 6: Final answer
    x = 45,235.49

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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.