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Finding the Fourth Proportional to 78,877.32, 118,285.02 and 32,113.32

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Solution

The fourth proportional to 78,877.32, 118,285.02 and 32,113.32 is: 48,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,877.32 : 118,285.02 = 32,113.32 : x
  2. Step 2: Convert to fraction form
    78,877.32/118,285.02 = 32,113.32/x
  3. Step 3: Cross multiply
    78,877.32x = 118,285.02 × 32,113.32
  4. Step 4: Simplify right side
    78,877.32x = 3,798,524,698.47
  5. Step 5: Solve for x
    x = 3,798,524,698.47/78,877.32
  6. Step 6: Final answer
    x = 48,157.38

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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.