Home / 74,723.01-103,114.76-40,730.78

Finding the Fourth Proportional to 74,723.01, 103,114.76 and 40,730.78

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Solution

The fourth proportional to 74,723.01, 103,114.76 and 40,730.78 is: 56,206.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,723.01 : 103,114.76 = 40,730.78 : x
  2. Step 2: Convert to fraction form
    74,723.01/103,114.76 = 40,730.78/x
  3. Step 3: Cross multiply
    74,723.01x = 103,114.76 × 40,730.78
  4. Step 4: Simplify right side
    74,723.01x = 4,199,944,658.45
  5. Step 5: Solve for x
    x = 4,199,944,658.45/74,723.01
  6. Step 6: Final answer
    x = 56,206.85

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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.