Home / 84,155.76-116,140.64-48,360.04

Finding the Fourth Proportional to 84,155.76, 116,140.64 and 48,360.04

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Solution

The fourth proportional to 84,155.76, 116,140.64 and 48,360.04 is: 66,740.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,155.76 : 116,140.64 = 48,360.04 : x
  2. Step 2: Convert to fraction form
    84,155.76/116,140.64 = 48,360.04/x
  3. Step 3: Cross multiply
    84,155.76x = 116,140.64 × 48,360.04
  4. Step 4: Simplify right side
    84,155.76x = 5,616,565,463.87
  5. Step 5: Solve for x
    x = 5,616,565,463.87/84,155.76
  6. Step 6: Final answer
    x = 66,740.12

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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.