Home / 40,708.20-61,062.30-28,898.40

Finding the Fourth Proportional to 40,708.20, 61,062.30 and 28,898.40

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Solution

The fourth proportional to 40,708.20, 61,062.30 and 28,898.40 is: 43,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,708.20 : 61,062.30 = 28,898.40 : x
  2. Step 2: Convert to fraction form
    40,708.20/61,062.30 = 28,898.40/x
  3. Step 3: Cross multiply
    40,708.20x = 61,062.30 × 28,898.40
  4. Step 4: Simplify right side
    40,708.20x = 1,764,602,770.32
  5. Step 5: Solve for x
    x = 1,764,602,770.32/40,708.20
  6. Step 6: Final answer
    x = 43,347.60

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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.