Home / 77,877.69-116,646.86-51,193.55

Finding the Fourth Proportional to 77,877.69, 116,646.86 and 51,193.55

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Solution

The fourth proportional to 77,877.69, 116,646.86 and 51,193.55 is: 76,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,877.69 : 116,646.86 = 51,193.55 : x
  2. Step 2: Convert to fraction form
    77,877.69/116,646.86 = 51,193.55/x
  3. Step 3: Cross multiply
    77,877.69x = 116,646.86 × 51,193.55
  4. Step 4: Simplify right side
    77,877.69x = 5,971,566,020.55
  5. Step 5: Solve for x
    x = 5,971,566,020.55/77,877.69
  6. Step 6: Final answer
    x = 76,678.78

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1.5x scale

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.