Home / 85,109.27-127,686.47-25,945.47

Finding the Fourth Proportional to 85,109.27, 127,686.47 and 25,945.47

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Solution

The fourth proportional to 85,109.27, 127,686.47 and 25,945.47 is: 38,925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,109.27 : 127,686.47 = 25,945.47 : x
  2. Step 2: Convert to fraction form
    85,109.27/127,686.47 = 25,945.47/x
  3. Step 3: Cross multiply
    85,109.27x = 127,686.47 × 25,945.47
  4. Step 4: Simplify right side
    85,109.27x = 3,312,885,347.06
  5. Step 5: Solve for x
    x = 3,312,885,347.06/85,109.27
  6. Step 6: Final answer
    x = 38,925.08

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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.