Home / 84,490.04-126,616.62-65,684

Finding the Fourth Proportional to 84,490.04, 126,616.62 and 65,684

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Solution

The fourth proportional to 84,490.04, 126,616.62 and 65,684 is: 98,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,490.04 : 126,616.62 = 65,684 : x
  2. Step 2: Convert to fraction form
    84,490.04/126,616.62 = 65,684/x
  3. Step 3: Cross multiply
    84,490.04x = 126,616.62 × 65,684
  4. Step 4: Simplify right side
    84,490.04x = 8,316,686,068.08
  5. Step 5: Solve for x
    x = 8,316,686,068.08/84,490.04
  6. Step 6: Final answer
    x = 98,433.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.