Home / 40,798.86-61,079.41-30,315.35

Finding the Fourth Proportional to 40,798.86, 61,079.41 and 30,315.35

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Solution

The fourth proportional to 40,798.86, 61,079.41 and 30,315.35 is: 45,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,798.86 : 61,079.41 = 30,315.35 : x
  2. Step 2: Convert to fraction form
    40,798.86/61,079.41 = 30,315.35/x
  3. Step 3: Cross multiply
    40,798.86x = 61,079.41 × 30,315.35
  4. Step 4: Simplify right side
    40,798.86x = 1,851,643,691.94
  5. Step 5: Solve for x
    x = 1,851,643,691.94/40,798.86
  6. Step 6: Final answer
    x = 45,384.69

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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.