Home / 40,875.42-61,323.75-18,678.18

Finding the Fourth Proportional to 40,875.42, 61,323.75 and 18,678.18

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Solution

The fourth proportional to 40,875.42, 61,323.75 and 18,678.18 is: 28,022.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,875.42 : 61,323.75 = 18,678.18 : x
  2. Step 2: Convert to fraction form
    40,875.42/61,323.75 = 18,678.18/x
  3. Step 3: Cross multiply
    40,875.42x = 61,323.75 × 18,678.18
  4. Step 4: Simplify right side
    40,875.42x = 1,145,416,040.78
  5. Step 5: Solve for x
    x = 1,145,416,040.78/40,875.42
  6. Step 6: Final answer
    x = 28,022.12

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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.