Home / 77,979.66-116,741.61-58,077.42

Finding the Fourth Proportional to 77,979.66, 116,741.61 and 58,077.42

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Solution

The fourth proportional to 77,979.66, 116,741.61 and 58,077.42 is: 86,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979.66 : 116,741.61 = 58,077.42 : x
  2. Step 2: Convert to fraction form
    77,979.66/116,741.61 = 58,077.42/x
  3. Step 3: Cross multiply
    77,979.66x = 116,741.61 × 58,077.42
  4. Step 4: Simplify right side
    77,979.66x = 6,780,051,515.45
  5. Step 5: Solve for x
    x = 6,780,051,515.45/77,979.66
  6. Step 6: Final answer
    x = 86,946.41

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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.