Home / 71,706.16-98,956.90-39,442.14

Finding the Fourth Proportional to 71,706.16, 98,956.90 and 39,442.14

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Solution

The fourth proportional to 71,706.16, 98,956.90 and 39,442.14 is: 54,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,706.16 : 98,956.90 = 39,442.14 : x
  2. Step 2: Convert to fraction form
    71,706.16/98,956.90 = 39,442.14/x
  3. Step 3: Cross multiply
    71,706.16x = 98,956.90 × 39,442.14
  4. Step 4: Simplify right side
    71,706.16x = 3,903,071,903.77
  5. Step 5: Solve for x
    x = 3,903,071,903.77/71,706.16
  6. Step 6: Final answer
    x = 54,431.47

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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.