Home / 54,315.71-74,951.57-30,437.76

Finding the Fourth Proportional to 54,315.71, 74,951.57 and 30,437.76

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Solution

The fourth proportional to 54,315.71, 74,951.57 and 30,437.76 is: 42,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,315.71 : 74,951.57 = 30,437.76 : x
  2. Step 2: Convert to fraction form
    54,315.71/74,951.57 = 30,437.76/x
  3. Step 3: Cross multiply
    54,315.71x = 74,951.57 × 30,437.76
  4. Step 4: Simplify right side
    54,315.71x = 2,281,357,747.09
  5. Step 5: Solve for x
    x = 2,281,357,747.09/54,315.71
  6. Step 6: Final answer
    x = 42,001.81

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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.