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Finding the Fourth Proportional to 90,598.80, 125,030.12 and 50,312.89

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Solution

The fourth proportional to 90,598.80, 125,030.12 and 50,312.89 is: 69,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,598.80 : 125,030.12 = 50,312.89 : x
  2. Step 2: Convert to fraction form
    90,598.80/125,030.12 = 50,312.89/x
  3. Step 3: Cross multiply
    90,598.80x = 125,030.12 × 50,312.89
  4. Step 4: Simplify right side
    90,598.80x = 6,290,626,422.68
  5. Step 5: Solve for x
    x = 6,290,626,422.68/90,598.80
  6. Step 6: Final answer
    x = 69,433.88

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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.