Home / 68,634.40-94,708.56-38,417.76

Finding the Fourth Proportional to 68,634.40, 94,708.56 and 38,417.76

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Solution

The fourth proportional to 68,634.40, 94,708.56 and 38,417.76 is: 53,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,634.40 : 94,708.56 = 38,417.76 : x
  2. Step 2: Convert to fraction form
    68,634.40/94,708.56 = 38,417.76/x
  3. Step 3: Cross multiply
    68,634.40x = 94,708.56 × 38,417.76
  4. Step 4: Simplify right side
    68,634.40x = 3,638,490,728.03
  5. Step 5: Solve for x
    x = 3,638,490,728.03/68,634.40
  6. Step 6: Final answer
    x = 53,012.64

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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.