Home / 55,903.20-77,146.47-30,752.70

Finding the Fourth Proportional to 55,903.20, 77,146.47 and 30,752.70

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Solution

The fourth proportional to 55,903.20, 77,146.47 and 30,752.70 is: 42,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.20 : 77,146.47 = 30,752.70 : x
  2. Step 2: Convert to fraction form
    55,903.20/77,146.47 = 30,752.70/x
  3. Step 3: Cross multiply
    55,903.20x = 77,146.47 × 30,752.70
  4. Step 4: Simplify right side
    55,903.20x = 2,372,462,247.97
  5. Step 5: Solve for x
    x = 2,372,462,247.97/55,903.20
  6. Step 6: Final answer
    x = 42,438.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.