Home / 90,918.02-136,395.66-38,327.60

Finding the Fourth Proportional to 90,918.02, 136,395.66 and 38,327.60

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Solution

The fourth proportional to 90,918.02, 136,395.66 and 38,327.60 is: 57,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,918.02 : 136,395.66 = 38,327.60 : x
  2. Step 2: Convert to fraction form
    90,918.02/136,395.66 = 38,327.60/x
  3. Step 3: Cross multiply
    90,918.02x = 136,395.66 × 38,327.60
  4. Step 4: Simplify right side
    90,918.02x = 5,227,718,298.22
  5. Step 5: Solve for x
    x = 5,227,718,298.22/90,918.02
  6. Step 6: Final answer
    x = 57,499.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.