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Finding the Fourth Proportional to 90,820.80, 125,330.16 and 50,532.48

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Solution

The fourth proportional to 90,820.80, 125,330.16 and 50,532.48 is: 69,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,820.80 : 125,330.16 = 50,532.48 : x
  2. Step 2: Convert to fraction form
    90,820.80/125,330.16 = 50,532.48/x
  3. Step 3: Cross multiply
    90,820.80x = 125,330.16 × 50,532.48
  4. Step 4: Simplify right side
    90,820.80x = 6,333,243,803.60
  5. Step 5: Solve for x
    x = 6,333,243,803.60/90,820.80
  6. Step 6: Final answer
    x = 69,733.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.