Home / 74,879.74-103,334.28-40,888.54

Finding the Fourth Proportional to 74,879.74, 103,334.28 and 40,888.54

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Solution

The fourth proportional to 74,879.74, 103,334.28 and 40,888.54 is: 56,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,879.74 : 103,334.28 = 40,888.54 : x
  2. Step 2: Convert to fraction form
    74,879.74/103,334.28 = 40,888.54/x
  3. Step 3: Cross multiply
    74,879.74x = 103,334.28 × 40,888.54
  4. Step 4: Simplify right side
    74,879.74x = 4,225,187,841.15
  5. Step 5: Solve for x
    x = 4,225,187,841.15/74,879.74
  6. Step 6: Final answer
    x = 56,426.32

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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.