Home / 84,344.31-116,319.76-69,981.40

Finding the Fourth Proportional to 84,344.31, 116,319.76 and 69,981.40

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Solution

The fourth proportional to 84,344.31, 116,319.76 and 69,981.40 is: 96,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,344.31 : 116,319.76 = 69,981.40 : x
  2. Step 2: Convert to fraction form
    84,344.31/116,319.76 = 69,981.40/x
  3. Step 3: Cross multiply
    84,344.31x = 116,319.76 × 69,981.40
  4. Step 4: Simplify right side
    84,344.31x = 8,140,219,652.46
  5. Step 5: Solve for x
    x = 8,140,219,652.46/84,344.31
  6. Step 6: Final answer
    x = 96,511.78

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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.