Home / 90,956.79-125,521.20-50,670.43

Finding the Fourth Proportional to 90,956.79, 125,521.20 and 50,670.43

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Solution

The fourth proportional to 90,956.79, 125,521.20 and 50,670.43 is: 69,925.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,956.79 : 125,521.20 = 50,670.43 : x
  2. Step 2: Convert to fraction form
    90,956.79/125,521.20 = 50,670.43/x
  3. Step 3: Cross multiply
    90,956.79x = 125,521.20 × 50,670.43
  4. Step 4: Simplify right side
    90,956.79x = 6,360,213,178.12
  5. Step 5: Solve for x
    x = 6,360,213,178.12/90,956.79
  6. Step 6: Final answer
    x = 69,925.66

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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.