Home / 89,288.20-133,713.60-42,486.40

Finding the Fourth Proportional to 89,288.20, 133,713.60 and 42,486.40

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Solution

The fourth proportional to 89,288.20, 133,713.60 and 42,486.40 is: 63,625.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,288.20 : 133,713.60 = 42,486.40 : x
  2. Step 2: Convert to fraction form
    89,288.20/133,713.60 = 42,486.40/x
  3. Step 3: Cross multiply
    89,288.20x = 133,713.60 × 42,486.40
  4. Step 4: Simplify right side
    89,288.20x = 5,681,009,495.04
  5. Step 5: Solve for x
    x = 5,681,009,495.04/89,288.20
  6. Step 6: Final answer
    x = 63,625.54

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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.