Home / 91,819.48-126,763.54-70,138.52

Finding the Fourth Proportional to 91,819.48, 126,763.54 and 70,138.52

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Solution

The fourth proportional to 91,819.48, 126,763.54 and 70,138.52 is: 96,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,819.48 : 126,763.54 = 70,138.52 : x
  2. Step 2: Convert to fraction form
    91,819.48/126,763.54 = 70,138.52/x
  3. Step 3: Cross multiply
    91,819.48x = 126,763.54 × 70,138.52
  4. Step 4: Simplify right side
    91,819.48x = 8,891,007,085.56
  5. Step 5: Solve for x
    x = 8,891,007,085.56/91,819.48
  6. Step 6: Final answer
    x = 96,831.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.