Home / 53,290.60-79,985-27,013.72

Finding the Fourth Proportional to 53,290.60, 79,985 and 27,013.72

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Solution

The fourth proportional to 53,290.60, 79,985 and 27,013.72 is: 40,545.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,290.60 : 79,985 = 27,013.72 : x
  2. Step 2: Convert to fraction form
    53,290.60/79,985 = 27,013.72/x
  3. Step 3: Cross multiply
    53,290.60x = 79,985 × 27,013.72
  4. Step 4: Simplify right side
    53,290.60x = 2,160,692,394.20
  5. Step 5: Solve for x
    x = 2,160,692,394.20/53,290.60
  6. Step 6: Final answer
    x = 40,545.47

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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.