Home / 78,767.91-118,112.85-26,159.76

Finding the Fourth Proportional to 78,767.91, 118,112.85 and 26,159.76

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Solution

The fourth proportional to 78,767.91, 118,112.85 and 26,159.76 is: 39,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,767.91 : 118,112.85 = 26,159.76 : x
  2. Step 2: Convert to fraction form
    78,767.91/118,112.85 = 26,159.76/x
  3. Step 3: Cross multiply
    78,767.91x = 118,112.85 × 26,159.76
  4. Step 4: Simplify right side
    78,767.91x = 3,089,803,808.92
  5. Step 5: Solve for x
    x = 3,089,803,808.92/78,767.91
  6. Step 6: Final answer
    x = 39,226.68

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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.