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Finding the Fourth Proportional to 64,357.80, 88,813.86 and 39,207.30

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Solution

The fourth proportional to 64,357.80, 88,813.86 and 39,207.30 is: 54,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,357.80 : 88,813.86 = 39,207.30 : x
  2. Step 2: Convert to fraction form
    64,357.80/88,813.86 = 39,207.30/x
  3. Step 3: Cross multiply
    64,357.80x = 88,813.86 × 39,207.30
  4. Step 4: Simplify right side
    64,357.80x = 3,482,151,653.18
  5. Step 5: Solve for x
    x = 3,482,151,653.18/64,357.80
  6. Step 6: Final answer
    x = 54,106.13

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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.