Home / 55,503.04-83,254.56-20,429.76

Finding the Fourth Proportional to 55,503.04, 83,254.56 and 20,429.76

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Solution

The fourth proportional to 55,503.04, 83,254.56 and 20,429.76 is: 30,644.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,503.04 : 83,254.56 = 20,429.76 : x
  2. Step 2: Convert to fraction form
    55,503.04/83,254.56 = 20,429.76/x
  3. Step 3: Cross multiply
    55,503.04x = 83,254.56 × 20,429.76
  4. Step 4: Simplify right side
    55,503.04x = 1,700,870,679.71
  5. Step 5: Solve for x
    x = 1,700,870,679.71/55,503.04
  6. Step 6: Final answer
    x = 30,644.64

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Similar ratio
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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.