Home / 61,420.28-84,806.19-60,439.40

Finding the Fourth Proportional to 61,420.28, 84,806.19 and 60,439.40

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Solution

The fourth proportional to 61,420.28, 84,806.19 and 60,439.40 is: 83,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,420.28 : 84,806.19 = 60,439.40 : x
  2. Step 2: Convert to fraction form
    61,420.28/84,806.19 = 60,439.40/x
  3. Step 3: Cross multiply
    61,420.28x = 84,806.19 × 60,439.40
  4. Step 4: Simplify right side
    61,420.28x = 5,125,634,815.86
  5. Step 5: Solve for x
    x = 5,125,634,815.86/61,420.28
  6. Step 6: Final answer
    x = 83,451.84

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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.