Home / 74,127.48-102,295.96-40,136.18

Finding the Fourth Proportional to 74,127.48, 102,295.96 and 40,136.18

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Solution

The fourth proportional to 74,127.48, 102,295.96 and 40,136.18 is: 55,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,127.48 : 102,295.96 = 40,136.18 : x
  2. Step 2: Convert to fraction form
    74,127.48/102,295.96 = 40,136.18/x
  3. Step 3: Cross multiply
    74,127.48x = 102,295.96 × 40,136.18
  4. Step 4: Simplify right side
    74,127.48x = 4,105,769,063.83
  5. Step 5: Solve for x
    x = 4,105,769,063.83/74,127.48
  6. Step 6: Final answer
    x = 55,387.95

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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.