Home / 75,966.04-104,812.86-42,431.32

Finding the Fourth Proportional to 75,966.04, 104,812.86 and 42,431.32

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Solution

The fourth proportional to 75,966.04, 104,812.86 and 42,431.32 is: 58,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,966.04 : 104,812.86 = 42,431.32 : x
  2. Step 2: Convert to fraction form
    75,966.04/104,812.86 = 42,431.32/x
  3. Step 3: Cross multiply
    75,966.04x = 104,812.86 × 42,431.32
  4. Step 4: Simplify right side
    75,966.04x = 4,447,348,002.78
  5. Step 5: Solve for x
    x = 4,447,348,002.78/75,966.04
  6. Step 6: Final answer
    x = 58,543.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.