Home / 78,284.64-108,052.02-48,077.16

Finding the Fourth Proportional to 78,284.64, 108,052.02 and 48,077.16

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Solution

The fourth proportional to 78,284.64, 108,052.02 and 48,077.16 is: 66,358.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,284.64 : 108,052.02 = 48,077.16 : x
  2. Step 2: Convert to fraction form
    78,284.64/108,052.02 = 48,077.16/x
  3. Step 3: Cross multiply
    78,284.64x = 108,052.02 × 48,077.16
  4. Step 4: Simplify right side
    78,284.64x = 5,194,834,253.86
  5. Step 5: Solve for x
    x = 5,194,834,253.86/78,284.64
  6. Step 6: Final answer
    x = 66,358.28

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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.