Home / 72,510.33-100,065.24-54,328.80

Finding the Fourth Proportional to 72,510.33, 100,065.24 and 54,328.80

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Solution

The fourth proportional to 72,510.33, 100,065.24 and 54,328.80 is: 74,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,510.33 : 100,065.24 = 54,328.80 : x
  2. Step 2: Convert to fraction form
    72,510.33/100,065.24 = 54,328.80/x
  3. Step 3: Cross multiply
    72,510.33x = 100,065.24 × 54,328.80
  4. Step 4: Simplify right side
    72,510.33x = 5,436,424,410.91
  5. Step 5: Solve for x
    x = 5,436,424,410.91/72,510.33
  6. Step 6: Final answer
    x = 74,974.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.