Home / 77,418.18-106,831.71-45,580.32

Finding the Fourth Proportional to 77,418.18, 106,831.71 and 45,580.32

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Solution

The fourth proportional to 77,418.18, 106,831.71 and 45,580.32 is: 62,897.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,418.18 : 106,831.71 = 45,580.32 : x
  2. Step 2: Convert to fraction form
    77,418.18/106,831.71 = 45,580.32/x
  3. Step 3: Cross multiply
    77,418.18x = 106,831.71 × 45,580.32
  4. Step 4: Simplify right side
    77,418.18x = 4,869,423,527.95
  5. Step 5: Solve for x
    x = 4,869,423,527.95/77,418.18
  6. Step 6: Final answer
    x = 62,897.68

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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.