Home / 40,901.50-61,366.65-20,139.58

Finding the Fourth Proportional to 40,901.50, 61,366.65 and 20,139.58

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Solution

The fourth proportional to 40,901.50, 61,366.65 and 20,139.58 is: 30,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,901.50 : 61,366.65 = 20,139.58 : x
  2. Step 2: Convert to fraction form
    40,901.50/61,366.65 = 20,139.58/x
  3. Step 3: Cross multiply
    40,901.50x = 61,366.65 × 20,139.58
  4. Step 4: Simplify right side
    40,901.50x = 1,235,898,557.01
  5. Step 5: Solve for x
    x = 1,235,898,557.01/40,901.50
  6. Step 6: Final answer
    x = 30,216.46

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1.5x scale

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.