Home / 57,554.36-79,437.28-38,680.55

Finding the Fourth Proportional to 57,554.36, 79,437.28 and 38,680.55

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Solution

The fourth proportional to 57,554.36, 79,437.28 and 38,680.55 is: 53,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,554.36 : 79,437.28 = 38,680.55 : x
  2. Step 2: Convert to fraction form
    57,554.36/79,437.28 = 38,680.55/x
  3. Step 3: Cross multiply
    57,554.36x = 79,437.28 × 38,680.55
  4. Step 4: Simplify right side
    57,554.36x = 3,072,677,782.80
  5. Step 5: Solve for x
    x = 3,072,677,782.80/57,554.36
  6. Step 6: Final answer
    x = 53,387.40

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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.