Home / 90,920.04-125,632.38-70,828.80

Finding the Fourth Proportional to 90,920.04, 125,632.38 and 70,828.80

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Solution

The fourth proportional to 90,920.04, 125,632.38 and 70,828.80 is: 97,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,920.04 : 125,632.38 = 70,828.80 : x
  2. Step 2: Convert to fraction form
    90,920.04/125,632.38 = 70,828.80/x
  3. Step 3: Cross multiply
    90,920.04x = 125,632.38 × 70,828.80
  4. Step 4: Simplify right side
    90,920.04x = 8,898,390,716.54
  5. Step 5: Solve for x
    x = 8,898,390,716.54/90,920.04
  6. Step 6: Final answer
    x = 97,870.51

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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.