Home / 74,809.20-112,062.60-46,642.80

Finding the Fourth Proportional to 74,809.20, 112,062.60 and 46,642.80

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Solution

The fourth proportional to 74,809.20, 112,062.60 and 46,642.80 is: 69,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.20 : 112,062.60 = 46,642.80 : x
  2. Step 2: Convert to fraction form
    74,809.20/112,062.60 = 46,642.80/x
  3. Step 3: Cross multiply
    74,809.20x = 112,062.60 × 46,642.80
  4. Step 4: Simplify right side
    74,809.20x = 5,226,913,439.28
  5. Step 5: Solve for x
    x = 5,226,913,439.28/74,809.20
  6. Step 6: Final answer
    x = 69,869.93

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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.