Home / 72,913.02-109,378.65-28,534.04

Finding the Fourth Proportional to 72,913.02, 109,378.65 and 28,534.04

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Solution

The fourth proportional to 72,913.02, 109,378.65 and 28,534.04 is: 42,804.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,913.02 : 109,378.65 = 28,534.04 : x
  2. Step 2: Convert to fraction form
    72,913.02/109,378.65 = 28,534.04/x
  3. Step 3: Cross multiply
    72,913.02x = 109,378.65 × 28,534.04
  4. Step 4: Simplify right side
    72,913.02x = 3,121,014,774.25
  5. Step 5: Solve for x
    x = 3,121,014,774.25/72,913.02
  6. Step 6: Final answer
    x = 42,804.63

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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.