Home / 74,970.28-112,449.66-30,585.16

Finding the Fourth Proportional to 74,970.28, 112,449.66 and 30,585.16

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Solution

The fourth proportional to 74,970.28, 112,449.66 and 30,585.16 is: 45,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,970.28 : 112,449.66 = 30,585.16 : x
  2. Step 2: Convert to fraction form
    74,970.28/112,449.66 = 30,585.16/x
  3. Step 3: Cross multiply
    74,970.28x = 112,449.66 × 30,585.16
  4. Step 4: Simplify right side
    74,970.28x = 3,439,290,843.05
  5. Step 5: Solve for x
    x = 3,439,290,843.05/74,970.28
  6. Step 6: Final answer
    x = 45,875.39

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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.