Home / 86,243.72-118,977-62,332.52

Finding the Fourth Proportional to 86,243.72, 118,977 and 62,332.52

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Solution

The fourth proportional to 86,243.72, 118,977 and 62,332.52 is: 85,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,243.72 : 118,977 = 62,332.52 : x
  2. Step 2: Convert to fraction form
    86,243.72/118,977 = 62,332.52/x
  3. Step 3: Cross multiply
    86,243.72x = 118,977 × 62,332.52
  4. Step 4: Simplify right side
    86,243.72x = 7,416,136,232.04
  5. Step 5: Solve for x
    x = 7,416,136,232.04/86,243.72
  6. Step 6: Final answer
    x = 85,990.45

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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.