Home / 72,934.02-109,395.36-28,570.86

Finding the Fourth Proportional to 72,934.02, 109,395.36 and 28,570.86

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Solution

The fourth proportional to 72,934.02, 109,395.36 and 28,570.86 is: 42,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,934.02 : 109,395.36 = 28,570.86 : x
  2. Step 2: Convert to fraction form
    72,934.02/109,395.36 = 28,570.86/x
  3. Step 3: Cross multiply
    72,934.02x = 109,395.36 × 28,570.86
  4. Step 4: Simplify right side
    72,934.02x = 3,125,519,515.21
  5. Step 5: Solve for x
    x = 3,125,519,515.21/72,934.02
  6. Step 6: Final answer
    x = 42,854.07

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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.