Home / 77,937.66-116,840.88-31,165.02

Finding the Fourth Proportional to 77,937.66, 116,840.88 and 31,165.02

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Solution

The fourth proportional to 77,937.66, 116,840.88 and 31,165.02 is: 46,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,937.66 : 116,840.88 = 31,165.02 : x
  2. Step 2: Convert to fraction form
    77,937.66/116,840.88 = 31,165.02/x
  3. Step 3: Cross multiply
    77,937.66x = 116,840.88 × 31,165.02
  4. Step 4: Simplify right side
    77,937.66x = 3,641,348,362.02
  5. Step 5: Solve for x
    x = 3,641,348,362.02/77,937.66
  6. Step 6: Final answer
    x = 46,721.29

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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.