Home / 91,259.12-125,933.64-57,302.48

Finding the Fourth Proportional to 91,259.12, 125,933.64 and 57,302.48

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Solution

The fourth proportional to 91,259.12, 125,933.64 and 57,302.48 is: 79,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,259.12 : 125,933.64 = 57,302.48 : x
  2. Step 2: Convert to fraction form
    91,259.12/125,933.64 = 57,302.48/x
  3. Step 3: Cross multiply
    91,259.12x = 125,933.64 × 57,302.48
  4. Step 4: Simplify right side
    91,259.12x = 7,216,309,887.43
  5. Step 5: Solve for x
    x = 7,216,309,887.43/91,259.12
  6. Step 6: Final answer
    x = 79,074.94

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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.