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Finding the Fourth Proportional to 45,319.80, 67,979.70 and 29,573.40

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Solution

The fourth proportional to 45,319.80, 67,979.70 and 29,573.40 is: 44,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,319.80 : 67,979.70 = 29,573.40 : x
  2. Step 2: Convert to fraction form
    45,319.80/67,979.70 = 29,573.40/x
  3. Step 3: Cross multiply
    45,319.80x = 67,979.70 × 29,573.40
  4. Step 4: Simplify right side
    45,319.80x = 2,010,390,859.98
  5. Step 5: Solve for x
    x = 2,010,390,859.98/45,319.80
  6. Step 6: Final answer
    x = 44,360.10

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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.