Home / 75,934.80-113,999.40-40,424.40

Finding the Fourth Proportional to 75,934.80, 113,999.40 and 40,424.40

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Solution

The fourth proportional to 75,934.80, 113,999.40 and 40,424.40 is: 60,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,934.80 : 113,999.40 = 40,424.40 : x
  2. Step 2: Convert to fraction form
    75,934.80/113,999.40 = 40,424.40/x
  3. Step 3: Cross multiply
    75,934.80x = 113,999.40 × 40,424.40
  4. Step 4: Simplify right side
    75,934.80x = 4,608,357,345.36
  5. Step 5: Solve for x
    x = 4,608,357,345.36/75,934.80
  6. Step 6: Final answer
    x = 60,688.35

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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.