Home / 45,870.36-68,793.08-12,582.55

Finding the Fourth Proportional to 45,870.36, 68,793.08 and 12,582.55

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Solution

The fourth proportional to 45,870.36, 68,793.08 and 12,582.55 is: 18,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,870.36 : 68,793.08 = 12,582.55 : x
  2. Step 2: Convert to fraction form
    45,870.36/68,793.08 = 12,582.55/x
  3. Step 3: Cross multiply
    45,870.36x = 68,793.08 × 12,582.55
  4. Step 4: Simplify right side
    45,870.36x = 865,592,269.13
  5. Step 5: Solve for x
    x = 865,592,269.13/45,870.36
  6. Step 6: Final answer
    x = 18,870.41

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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.