Home / 91,701.12-126,528.24-59,916.72

Finding the Fourth Proportional to 91,701.12, 126,528.24 and 59,916.72

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Solution

The fourth proportional to 91,701.12, 126,528.24 and 59,916.72 is: 82,672.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,701.12 : 126,528.24 = 59,916.72 : x
  2. Step 2: Convert to fraction form
    91,701.12/126,528.24 = 59,916.72/x
  3. Step 3: Cross multiply
    91,701.12x = 126,528.24 × 59,916.72
  4. Step 4: Simplify right side
    91,701.12x = 7,581,157,128.17
  5. Step 5: Solve for x
    x = 7,581,157,128.17/91,701.12
  6. Step 6: Final answer
    x = 82,672.46

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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.