Home / 54,857.01-75,702.27-30,988.35

Finding the Fourth Proportional to 54,857.01, 75,702.27 and 30,988.35

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Solution

The fourth proportional to 54,857.01, 75,702.27 and 30,988.35 is: 42,763.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,857.01 : 75,702.27 = 30,988.35 : x
  2. Step 2: Convert to fraction form
    54,857.01/75,702.27 = 30,988.35/x
  3. Step 3: Cross multiply
    54,857.01x = 75,702.27 × 30,988.35
  4. Step 4: Simplify right side
    54,857.01x = 2,345,888,438.55
  5. Step 5: Solve for x
    x = 2,345,888,438.55/54,857.01
  6. Step 6: Final answer
    x = 42,763.69

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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.