Home / 40,918.40-61,377.60-40,659.20

Finding the Fourth Proportional to 40,918.40, 61,377.60 and 40,659.20

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Solution

The fourth proportional to 40,918.40, 61,377.60 and 40,659.20 is: 60,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,918.40 : 61,377.60 = 40,659.20 : x
  2. Step 2: Convert to fraction form
    40,918.40/61,377.60 = 40,659.20/x
  3. Step 3: Cross multiply
    40,918.40x = 61,377.60 × 40,659.20
  4. Step 4: Simplify right side
    40,918.40x = 2,495,564,113.92
  5. Step 5: Solve for x
    x = 2,495,564,113.92/40,918.40
  6. Step 6: Final answer
    x = 60,988.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.