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Finding the Fourth Proportional to 88,671.60, 133,007.40 and 42,015.60

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Solution

The fourth proportional to 88,671.60, 133,007.40 and 42,015.60 is: 63,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,671.60 : 133,007.40 = 42,015.60 : x
  2. Step 2: Convert to fraction form
    88,671.60/133,007.40 = 42,015.60/x
  3. Step 3: Cross multiply
    88,671.60x = 133,007.40 × 42,015.60
  4. Step 4: Simplify right side
    88,671.60x = 5,588,385,715.44
  5. Step 5: Solve for x
    x = 5,588,385,715.44/88,671.60
  6. Step 6: Final answer
    x = 63,023.40

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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.