Home / 77,710.61-116,565.90-51,409.19

Finding the Fourth Proportional to 77,710.61, 116,565.90 and 51,409.19

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Solution

The fourth proportional to 77,710.61, 116,565.90 and 51,409.19 is: 77,113.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,710.61 : 116,565.90 = 51,409.19 : x
  2. Step 2: Convert to fraction form
    77,710.61/116,565.90 = 51,409.19/x
  3. Step 3: Cross multiply
    77,710.61x = 116,565.90 × 51,409.19
  4. Step 4: Simplify right side
    77,710.61x = 5,992,558,792.04
  5. Step 5: Solve for x
    x = 5,992,558,792.04/77,710.61
  6. Step 6: Final answer
    x = 77,113.78

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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.