Home / 89,320.79-123,258.05-53,023.74

Finding the Fourth Proportional to 89,320.79, 123,258.05 and 53,023.74

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Solution

The fourth proportional to 89,320.79, 123,258.05 and 53,023.74 is: 73,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,320.79 : 123,258.05 = 53,023.74 : x
  2. Step 2: Convert to fraction form
    89,320.79/123,258.05 = 53,023.74/x
  3. Step 3: Cross multiply
    89,320.79x = 123,258.05 × 53,023.74
  4. Step 4: Simplify right side
    89,320.79x = 6,535,603,037.97
  5. Step 5: Solve for x
    x = 6,535,603,037.97/89,320.79
  6. Step 6: Final answer
    x = 73,170.01

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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.