Home / 89,913.66-124,080.72-49,627.50

Finding the Fourth Proportional to 89,913.66, 124,080.72 and 49,627.50

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Solution

The fourth proportional to 89,913.66, 124,080.72 and 49,627.50 is: 68,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,913.66 : 124,080.72 = 49,627.50 : x
  2. Step 2: Convert to fraction form
    89,913.66/124,080.72 = 49,627.50/x
  3. Step 3: Cross multiply
    89,913.66x = 124,080.72 × 49,627.50
  4. Step 4: Simplify right side
    89,913.66x = 6,157,815,931.80
  5. Step 5: Solve for x
    x = 6,157,815,931.80/89,913.66
  6. Step 6: Final answer
    x = 68,485.88

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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.