Home / 71,166.24-98,211.51-38,902.65

Finding the Fourth Proportional to 71,166.24, 98,211.51 and 38,902.65

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Solution

The fourth proportional to 71,166.24, 98,211.51 and 38,902.65 is: 53,686.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,166.24 : 98,211.51 = 38,902.65 : x
  2. Step 2: Convert to fraction form
    71,166.24/98,211.51 = 38,902.65/x
  3. Step 3: Cross multiply
    71,166.24x = 98,211.51 × 38,902.65
  4. Step 4: Simplify right side
    71,166.24x = 3,820,687,485.32
  5. Step 5: Solve for x
    x = 3,820,687,485.32/71,166.24
  6. Step 6: Final answer
    x = 53,686.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.