Home / 72,685.04-109,029.61-20,094.52

Finding the Fourth Proportional to 72,685.04, 109,029.61 and 20,094.52

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Solution

The fourth proportional to 72,685.04, 109,029.61 and 20,094.52 is: 30,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,685.04 : 109,029.61 = 20,094.52 : x
  2. Step 2: Convert to fraction form
    72,685.04/109,029.61 = 20,094.52/x
  3. Step 3: Cross multiply
    72,685.04x = 109,029.61 × 20,094.52
  4. Step 4: Simplify right side
    72,685.04x = 2,190,897,678.74
  5. Step 5: Solve for x
    x = 2,190,897,678.74/72,685.04
  6. Step 6: Final answer
    x = 30,142.35

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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.