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Finding the Fourth Proportional to 145,377.54, 218,095.61 and 51,880.86

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Solution

The fourth proportional to 145,377.54, 218,095.61 and 51,880.86 is: 77,831.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,377.54 : 218,095.61 = 51,880.86 : x
  2. Step 2: Convert to fraction form
    145,377.54/218,095.61 = 51,880.86/x
  3. Step 3: Cross multiply
    145,377.54x = 218,095.61 × 51,880.86
  4. Step 4: Simplify right side
    145,377.54x = 11,314,987,549.62
  5. Step 5: Solve for x
    x = 11,314,987,549.62/145,377.54
  6. Step 6: Final answer
    x = 77,831.74

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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.