Home / 51,278.29-70,754.67-38,988.72

Finding the Fourth Proportional to 51,278.29, 70,754.67 and 38,988.72

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Solution

The fourth proportional to 51,278.29, 70,754.67 and 38,988.72 is: 53,797.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.29 : 70,754.67 = 38,988.72 : x
  2. Step 2: Convert to fraction form
    51,278.29/70,754.67 = 38,988.72/x
  3. Step 3: Cross multiply
    51,278.29x = 70,754.67 × 38,988.72
  4. Step 4: Simplify right side
    51,278.29x = 2,758,634,017.32
  5. Step 5: Solve for x
    x = 2,758,634,017.32/51,278.29
  6. Step 6: Final answer
    x = 53,797.31

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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.