Home / 86,387.16-129,412.61-48,833.63

Finding the Fourth Proportional to 86,387.16, 129,412.61 and 48,833.63

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Solution

The fourth proportional to 86,387.16, 129,412.61 and 48,833.63 is: 73,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,387.16 : 129,412.61 = 48,833.63 : x
  2. Step 2: Convert to fraction form
    86,387.16/129,412.61 = 48,833.63/x
  3. Step 3: Cross multiply
    86,387.16x = 129,412.61 × 48,833.63
  4. Step 4: Simplify right side
    86,387.16x = 6,319,688,156.56
  5. Step 5: Solve for x
    x = 6,319,688,156.56/86,387.16
  6. Step 6: Final answer
    x = 73,155.41

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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.