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Finding the Fourth Proportional to 60,377.40, 90,507.78 and 20,904.84

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Solution

The fourth proportional to 60,377.40, 90,507.78 and 20,904.84 is: 31,337.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,377.40 : 90,507.78 = 20,904.84 : x
  2. Step 2: Convert to fraction form
    60,377.40/90,507.78 = 20,904.84/x
  3. Step 3: Cross multiply
    60,377.40x = 90,507.78 × 20,904.84
  4. Step 4: Simplify right side
    60,377.40x = 1,892,050,659.66
  5. Step 5: Solve for x
    x = 1,892,050,659.66/60,377.40
  6. Step 6: Final answer
    x = 31,337.07

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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.