Home / 74,106.24-102,266.40-40,572

Finding the Fourth Proportional to 74,106.24, 102,266.40 and 40,572

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Solution

The fourth proportional to 74,106.24, 102,266.40 and 40,572 is: 55,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,106.24 : 102,266.40 = 40,572 : x
  2. Step 2: Convert to fraction form
    74,106.24/102,266.40 = 40,572/x
  3. Step 3: Cross multiply
    74,106.24x = 102,266.40 × 40,572
  4. Step 4: Simplify right side
    74,106.24x = 4,149,152,380.80
  5. Step 5: Solve for x
    x = 4,149,152,380.80/74,106.24
  6. Step 6: Final answer
    x = 55,989.24

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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.