Home / 45,545.72-68,331.81-18,886.82

Finding the Fourth Proportional to 45,545.72, 68,331.81 and 18,886.82

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Solution

The fourth proportional to 45,545.72, 68,331.81 and 18,886.82 is: 28,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,545.72 : 68,331.81 = 18,886.82 : x
  2. Step 2: Convert to fraction form
    45,545.72/68,331.81 = 18,886.82/x
  3. Step 3: Cross multiply
    45,545.72x = 68,331.81 × 18,886.82
  4. Step 4: Simplify right side
    45,545.72x = 1,290,570,595.74
  5. Step 5: Solve for x
    x = 1,290,570,595.74/45,545.72
  6. Step 6: Final answer
    x = 28,335.72

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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.