Home / 74,477.60-111,715.40-18,318.18

Finding the Fourth Proportional to 74,477.60, 111,715.40 and 18,318.18

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Solution

The fourth proportional to 74,477.60, 111,715.40 and 18,318.18 is: 27,477.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,477.60 : 111,715.40 = 18,318.18 : x
  2. Step 2: Convert to fraction form
    74,477.60/111,715.40 = 18,318.18/x
  3. Step 3: Cross multiply
    74,477.60x = 111,715.40 × 18,318.18
  4. Step 4: Simplify right side
    74,477.60x = 2,046,422,714.38
  5. Step 5: Solve for x
    x = 2,046,422,714.38/74,477.60
  6. Step 6: Final answer
    x = 27,477.02

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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.