Home / 71,051.28-98,088.36-45,915.12

Finding the Fourth Proportional to 71,051.28, 98,088.36 and 45,915.12

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Solution

The fourth proportional to 71,051.28, 98,088.36 and 45,915.12 is: 63,387.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,051.28 : 98,088.36 = 45,915.12 : x
  2. Step 2: Convert to fraction form
    71,051.28/98,088.36 = 45,915.12/x
  3. Step 3: Cross multiply
    71,051.28x = 98,088.36 × 45,915.12
  4. Step 4: Simplify right side
    71,051.28x = 4,503,738,820.00
  5. Step 5: Solve for x
    x = 4,503,738,820.00/71,051.28
  6. Step 6: Final answer
    x = 63,387.16

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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.