Home / 74,871.66-103,320.17-40,879.52

Finding the Fourth Proportional to 74,871.66, 103,320.17 and 40,879.52

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Solution

The fourth proportional to 74,871.66, 103,320.17 and 40,879.52 is: 56,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,871.66 : 103,320.17 = 40,879.52 : x
  2. Step 2: Convert to fraction form
    74,871.66/103,320.17 = 40,879.52/x
  3. Step 3: Cross multiply
    74,871.66x = 103,320.17 × 40,879.52
  4. Step 4: Simplify right side
    74,871.66x = 4,223,678,955.92
  5. Step 5: Solve for x
    x = 4,223,678,955.92/74,871.66
  6. Step 6: Final answer
    x = 56,412.25

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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.