Home / 76,265.16-105,245.62-42,731.08

Finding the Fourth Proportional to 76,265.16, 105,245.62 and 42,731.08

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Solution

The fourth proportional to 76,265.16, 105,245.62 and 42,731.08 is: 58,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,265.16 : 105,245.62 = 42,731.08 : x
  2. Step 2: Convert to fraction form
    76,265.16/105,245.62 = 42,731.08/x
  3. Step 3: Cross multiply
    76,265.16x = 105,245.62 × 42,731.08
  4. Step 4: Simplify right side
    76,265.16x = 4,497,259,007.87
  5. Step 5: Solve for x
    x = 4,497,259,007.87/76,265.16
  6. Step 6: Final answer
    x = 58,968.72

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1.5x scale

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.