Home / 90,727.80-125,095.50-75,642.36

Finding the Fourth Proportional to 90,727.80, 125,095.50 and 75,642.36

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Solution

The fourth proportional to 90,727.80, 125,095.50 and 75,642.36 is: 104,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,727.80 : 125,095.50 = 75,642.36 : x
  2. Step 2: Convert to fraction form
    90,727.80/125,095.50 = 75,642.36/x
  3. Step 3: Cross multiply
    90,727.80x = 125,095.50 × 75,642.36
  4. Step 4: Simplify right side
    90,727.80x = 9,462,518,845.38
  5. Step 5: Solve for x
    x = 9,462,518,845.38/90,727.80
  6. Step 6: Final answer
    x = 104,295.69

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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.