Home / 64,385.72-88,853.10-39,237.56

Finding the Fourth Proportional to 64,385.72, 88,853.10 and 39,237.56

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Solution

The fourth proportional to 64,385.72, 88,853.10 and 39,237.56 is: 54,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,385.72 : 88,853.10 = 39,237.56 : x
  2. Step 2: Convert to fraction form
    64,385.72/88,853.10 = 39,237.56/x
  3. Step 3: Cross multiply
    64,385.72x = 88,853.10 × 39,237.56
  4. Step 4: Simplify right side
    64,385.72x = 3,486,378,842.44
  5. Step 5: Solve for x
    x = 3,486,378,842.44/64,385.72
  6. Step 6: Final answer
    x = 54,148.32

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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.