Home / 90,907.48-125,456.02-50,618.68

Finding the Fourth Proportional to 90,907.48, 125,456.02 and 50,618.68

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Solution

The fourth proportional to 90,907.48, 125,456.02 and 50,618.68 is: 69,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,907.48 : 125,456.02 = 50,618.68 : x
  2. Step 2: Convert to fraction form
    90,907.48/125,456.02 = 50,618.68/x
  3. Step 3: Cross multiply
    90,907.48x = 125,456.02 × 50,618.68
  4. Step 4: Simplify right side
    90,907.48x = 6,350,418,130.45
  5. Step 5: Solve for x
    x = 6,350,418,130.45/90,907.48
  6. Step 6: Final answer
    x = 69,855.84

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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.