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Finding the Fourth Proportional to 64,377.99, 88,808.60 and 38,870.28

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Solution

The fourth proportional to 64,377.99, 88,808.60 and 38,870.28 is: 53,621.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,377.99 : 88,808.60 = 38,870.28 : x
  2. Step 2: Convert to fraction form
    64,377.99/88,808.60 = 38,870.28/x
  3. Step 3: Cross multiply
    64,377.99x = 88,808.60 × 38,870.28
  4. Step 4: Simplify right side
    64,377.99x = 3,452,015,245.58
  5. Step 5: Solve for x
    x = 3,452,015,245.58/64,377.99
  6. Step 6: Final answer
    x = 53,621.05

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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.