Home / 88,909.20-133,363.80-57,416.40

Finding the Fourth Proportional to 88,909.20, 133,363.80 and 57,416.40

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Solution

The fourth proportional to 88,909.20, 133,363.80 and 57,416.40 is: 86,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,909.20 : 133,363.80 = 57,416.40 : x
  2. Step 2: Convert to fraction form
    88,909.20/133,363.80 = 57,416.40/x
  3. Step 3: Cross multiply
    88,909.20x = 133,363.80 × 57,416.40
  4. Step 4: Simplify right side
    88,909.20x = 7,657,269,286.32
  5. Step 5: Solve for x
    x = 7,657,269,286.32/88,909.20
  6. Step 6: Final answer
    x = 86,124.60

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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.