Home / 39,749.20-54,859.08-25,643.06

Finding the Fourth Proportional to 39,749.20, 54,859.08 and 25,643.06

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Solution

The fourth proportional to 39,749.20, 54,859.08 and 25,643.06 is: 35,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.20 : 54,859.08 = 25,643.06 : x
  2. Step 2: Convert to fraction form
    39,749.20/54,859.08 = 25,643.06/x
  3. Step 3: Cross multiply
    39,749.20x = 54,859.08 × 25,643.06
  4. Step 4: Simplify right side
    39,749.20x = 1,406,754,679.98
  5. Step 5: Solve for x
    x = 1,406,754,679.98/39,749.20
  6. Step 6: Final answer
    x = 35,390.77

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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.