Home / 91,345.12-137,095.44-35,980

Finding the Fourth Proportional to 91,345.12, 137,095.44 and 35,980

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Solution

The fourth proportional to 91,345.12, 137,095.44 and 35,980 is: 54,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,345.12 : 137,095.44 = 35,980 : x
  2. Step 2: Convert to fraction form
    91,345.12/137,095.44 = 35,980/x
  3. Step 3: Cross multiply
    91,345.12x = 137,095.44 × 35,980
  4. Step 4: Simplify right side
    91,345.12x = 4,932,693,931.20
  5. Step 5: Solve for x
    x = 4,932,693,931.20/91,345.12
  6. Step 6: Final answer
    x = 54,000.63

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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.