Home / 86,666.56-129,913.72-60,315.94

Finding the Fourth Proportional to 86,666.56, 129,913.72 and 60,315.94

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Solution

The fourth proportional to 86,666.56, 129,913.72 and 60,315.94 is: 90,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,666.56 : 129,913.72 = 60,315.94 : x
  2. Step 2: Convert to fraction form
    86,666.56/129,913.72 = 60,315.94/x
  3. Step 3: Cross multiply
    86,666.56x = 129,913.72 × 60,315.94
  4. Step 4: Simplify right side
    86,666.56x = 7,835,868,140.70
  5. Step 5: Solve for x
    x = 7,835,868,140.70/86,666.56
  6. Step 6: Final answer
    x = 90,413.97

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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.