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Finding the Fourth Proportional to 63,780.80, 88,017.90 and 35,488.28

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Solution

The fourth proportional to 63,780.80, 88,017.90 and 35,488.28 is: 48,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,780.80 : 88,017.90 = 35,488.28 : x
  2. Step 2: Convert to fraction form
    63,780.80/88,017.90 = 35,488.28/x
  3. Step 3: Cross multiply
    63,780.80x = 88,017.90 × 35,488.28
  4. Step 4: Simplify right side
    63,780.80x = 3,123,603,880.21
  5. Step 5: Solve for x
    x = 3,123,603,880.21/63,780.80
  6. Step 6: Final answer
    x = 48,974.05

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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.