Home / 45,866.83-68,800.32-12,587.35

Finding the Fourth Proportional to 45,866.83, 68,800.32 and 12,587.35

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Solution

The fourth proportional to 45,866.83, 68,800.32 and 12,587.35 is: 18,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,866.83 : 68,800.32 = 12,587.35 : x
  2. Step 2: Convert to fraction form
    45,866.83/68,800.32 = 12,587.35/x
  3. Step 3: Cross multiply
    45,866.83x = 68,800.32 × 12,587.35
  4. Step 4: Simplify right side
    45,866.83x = 866,013,707.95
  5. Step 5: Solve for x
    x = 866,013,707.95/45,866.83
  6. Step 6: Final answer
    x = 18,881.05

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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.