Home / 86,831.10-119,712.04-62,611.80

Finding the Fourth Proportional to 86,831.10, 119,712.04 and 62,611.80

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Solution

The fourth proportional to 86,831.10, 119,712.04 and 62,611.80 is: 86,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,831.10 : 119,712.04 = 62,611.80 : x
  2. Step 2: Convert to fraction form
    86,831.10/119,712.04 = 62,611.80/x
  3. Step 3: Cross multiply
    86,831.10x = 119,712.04 × 62,611.80
  4. Step 4: Simplify right side
    86,831.10x = 7,495,386,306.07
  5. Step 5: Solve for x
    x = 7,495,386,306.07/86,831.10
  6. Step 6: Final answer
    x = 86,321.45

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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.