Home / 84,870.47-127,304.89-51,599.72

Finding the Fourth Proportional to 84,870.47, 127,304.89 and 51,599.72

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Solution

The fourth proportional to 84,870.47, 127,304.89 and 51,599.72 is: 77,399.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,870.47 : 127,304.89 = 51,599.72 : x
  2. Step 2: Convert to fraction form
    84,870.47/127,304.89 = 51,599.72/x
  3. Step 3: Cross multiply
    84,870.47x = 127,304.89 × 51,599.72
  4. Step 4: Simplify right side
    84,870.47x = 6,568,895,913.11
  5. Step 5: Solve for x
    x = 6,568,895,913.11/84,870.47
  6. Step 6: Final answer
    x = 77,399.08

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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.