Home / 72,301.04-108,439.24-19,698.20

Finding the Fourth Proportional to 72,301.04, 108,439.24 and 19,698.20

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Solution

The fourth proportional to 72,301.04, 108,439.24 and 19,698.20 is: 29,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,301.04 : 108,439.24 = 19,698.20 : x
  2. Step 2: Convert to fraction form
    72,301.04/108,439.24 = 19,698.20/x
  3. Step 3: Cross multiply
    72,301.04x = 108,439.24 × 19,698.20
  4. Step 4: Simplify right side
    72,301.04x = 2,136,057,837.37
  5. Step 5: Solve for x
    x = 2,136,057,837.37/72,301.04
  6. Step 6: Final answer
    x = 29,543.94

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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.