Home / 84,534.18-116,778.68-67,516.08

Finding the Fourth Proportional to 84,534.18, 116,778.68 and 67,516.08

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Solution

The fourth proportional to 84,534.18, 116,778.68 and 67,516.08 is: 93,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,534.18 : 116,778.68 = 67,516.08 : x
  2. Step 2: Convert to fraction form
    84,534.18/116,778.68 = 67,516.08/x
  3. Step 3: Cross multiply
    84,534.18x = 116,778.68 × 67,516.08
  4. Step 4: Simplify right side
    84,534.18x = 7,884,438,701.17
  5. Step 5: Solve for x
    x = 7,884,438,701.17/84,534.18
  6. Step 6: Final answer
    x = 93,269.24

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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.