Home / 40,905.60-61,358.40-29,095.80

Finding the Fourth Proportional to 40,905.60, 61,358.40 and 29,095.80

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Solution

The fourth proportional to 40,905.60, 61,358.40 and 29,095.80 is: 43,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,905.60 : 61,358.40 = 29,095.80 : x
  2. Step 2: Convert to fraction form
    40,905.60/61,358.40 = 29,095.80/x
  3. Step 3: Cross multiply
    40,905.60x = 61,358.40 × 29,095.80
  4. Step 4: Simplify right side
    40,905.60x = 1,785,271,734.72
  5. Step 5: Solve for x
    x = 1,785,271,734.72/40,905.60
  6. Step 6: Final answer
    x = 43,643.70

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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.