Home / 70,915.16-97,862.71-39,084.05

Finding the Fourth Proportional to 70,915.16, 97,862.71 and 39,084.05

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Solution

The fourth proportional to 70,915.16, 97,862.71 and 39,084.05 is: 53,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,915.16 : 97,862.71 = 39,084.05 : x
  2. Step 2: Convert to fraction form
    70,915.16/97,862.71 = 39,084.05/x
  3. Step 3: Cross multiply
    70,915.16x = 97,862.71 × 39,084.05
  4. Step 4: Simplify right side
    70,915.16x = 3,824,870,366.04
  5. Step 5: Solve for x
    x = 3,824,870,366.04/70,915.16
  6. Step 6: Final answer
    x = 53,935.87

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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.