Home / 86,125.44-129,074.76-46,139.79

Finding the Fourth Proportional to 86,125.44, 129,074.76 and 46,139.79

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Solution

The fourth proportional to 86,125.44, 129,074.76 and 46,139.79 is: 69,148.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,125.44 : 129,074.76 = 46,139.79 : x
  2. Step 2: Convert to fraction form
    86,125.44/129,074.76 = 46,139.79/x
  3. Step 3: Cross multiply
    86,125.44x = 129,074.76 × 46,139.79
  4. Step 4: Simplify right side
    86,125.44x = 5,955,482,320.70
  5. Step 5: Solve for x
    x = 5,955,482,320.70/86,125.44
  6. Step 6: Final answer
    x = 69,148.93

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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.