Home / 51,532.79-77,650.20-42,377.87

Finding the Fourth Proportional to 51,532.79, 77,650.20 and 42,377.87

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Solution

The fourth proportional to 51,532.79, 77,650.20 and 42,377.87 is: 63,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,532.79 : 77,650.20 = 42,377.87 : x
  2. Step 2: Convert to fraction form
    51,532.79/77,650.20 = 42,377.87/x
  3. Step 3: Cross multiply
    51,532.79x = 77,650.20 × 42,377.87
  4. Step 4: Simplify right side
    51,532.79x = 3,290,650,081.07
  5. Step 5: Solve for x
    x = 3,290,650,081.07/51,532.79
  6. Step 6: Final answer
    x = 63,855.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.