Home / 91,089.08-125,703.12-50,805.43

Finding the Fourth Proportional to 91,089.08, 125,703.12 and 50,805.43

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Solution

The fourth proportional to 91,089.08, 125,703.12 and 50,805.43 is: 70,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,089.08 : 125,703.12 = 50,805.43 : x
  2. Step 2: Convert to fraction form
    91,089.08/125,703.12 = 50,805.43/x
  3. Step 3: Cross multiply
    91,089.08x = 125,703.12 × 50,805.43
  4. Step 4: Simplify right side
    91,089.08x = 6,386,400,940.20
  5. Step 5: Solve for x
    x = 6,386,400,940.20/91,089.08
  6. Step 6: Final answer
    x = 70,111.60

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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.