Home / 78,887.04-108,864.72-43,076.40

Finding the Fourth Proportional to 78,887.04, 108,864.72 and 43,076.40

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Solution

The fourth proportional to 78,887.04, 108,864.72 and 43,076.40 is: 59,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887.04 : 108,864.72 = 43,076.40 : x
  2. Step 2: Convert to fraction form
    78,887.04/108,864.72 = 43,076.40/x
  3. Step 3: Cross multiply
    78,887.04x = 108,864.72 × 43,076.40
  4. Step 4: Simplify right side
    78,887.04x = 4,689,500,224.61
  5. Step 5: Solve for x
    x = 4,689,500,224.61/78,887.04
  6. Step 6: Final answer
    x = 59,445.76

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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.