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Finding the Fourth Proportional to 63,969.80, 95,953.80 and 28,909.40

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Solution

The fourth proportional to 63,969.80, 95,953.80 and 28,909.40 is: 43,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,969.80 : 95,953.80 = 28,909.40 : x
  2. Step 2: Convert to fraction form
    63,969.80/95,953.80 = 28,909.40/x
  3. Step 3: Cross multiply
    63,969.80x = 95,953.80 × 28,909.40
  4. Step 4: Simplify right side
    63,969.80x = 2,773,966,785.72
  5. Step 5: Solve for x
    x = 2,773,966,785.72/63,969.80
  6. Step 6: Final answer
    x = 43,363.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.