Home / 97,966.89-135,181.28-54,358.80

Finding the Fourth Proportional to 97,966.89, 135,181.28 and 54,358.80

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Solution

The fourth proportional to 97,966.89, 135,181.28 and 54,358.80 is: 75,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,966.89 : 135,181.28 = 54,358.80 : x
  2. Step 2: Convert to fraction form
    97,966.89/135,181.28 = 54,358.80/x
  3. Step 3: Cross multiply
    97,966.89x = 135,181.28 × 54,358.80
  4. Step 4: Simplify right side
    97,966.89x = 7,348,291,639.35
  5. Step 5: Solve for x
    x = 7,348,291,639.35/97,966.89
  6. Step 6: Final answer
    x = 75,007.91

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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.