Home / 291,621.50-437,432.52-81,265.04

Finding the Fourth Proportional to 291,621.50, 437,432.52 and 81,265.04

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Solution

The fourth proportional to 291,621.50, 437,432.52 and 81,265.04 is: 121,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,621.50 : 437,432.52 = 81,265.04 : x
  2. Step 2: Convert to fraction form
    291,621.50/437,432.52 = 81,265.04/x
  3. Step 3: Cross multiply
    291,621.50x = 437,432.52 × 81,265.04
  4. Step 4: Simplify right side
    291,621.50x = 35,547,971,235.10
  5. Step 5: Solve for x
    x = 35,547,971,235.10/291,621.50
  6. Step 6: Final answer
    x = 121,897.64

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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.