Home / 74,154.53-111,242.64-21,557.18

Finding the Fourth Proportional to 74,154.53, 111,242.64 and 21,557.18

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Solution

The fourth proportional to 74,154.53, 111,242.64 and 21,557.18 is: 32,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,154.53 : 111,242.64 = 21,557.18 : x
  2. Step 2: Convert to fraction form
    74,154.53/111,242.64 = 21,557.18/x
  3. Step 3: Cross multiply
    74,154.53x = 111,242.64 × 21,557.18
  4. Step 4: Simplify right side
    74,154.53x = 2,398,077,614.16
  5. Step 5: Solve for x
    x = 2,398,077,614.16/74,154.53
  6. Step 6: Final answer
    x = 32,338.92

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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.