Home / 90,156.26-135,114.93-47,945.45

Finding the Fourth Proportional to 90,156.26, 135,114.93 and 47,945.45

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Solution

The fourth proportional to 90,156.26, 135,114.93 and 47,945.45 is: 71,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,156.26 : 135,114.93 = 47,945.45 : x
  2. Step 2: Convert to fraction form
    90,156.26/135,114.93 = 47,945.45/x
  3. Step 3: Cross multiply
    90,156.26x = 135,114.93 × 47,945.45
  4. Step 4: Simplify right side
    90,156.26x = 6,478,146,120.57
  5. Step 5: Solve for x
    x = 6,478,146,120.57/90,156.26
  6. Step 6: Final answer
    x = 71,854.65

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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.