Home / 45,867.16-68,802.05-12,587.50

Finding the Fourth Proportional to 45,867.16, 68,802.05 and 12,587.50

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Solution

The fourth proportional to 45,867.16, 68,802.05 and 12,587.50 is: 18,881.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,867.16 : 68,802.05 = 12,587.50 : x
  2. Step 2: Convert to fraction form
    45,867.16/68,802.05 = 12,587.50/x
  3. Step 3: Cross multiply
    45,867.16x = 68,802.05 × 12,587.50
  4. Step 4: Simplify right side
    45,867.16x = 866,045,663.84
  5. Step 5: Solve for x
    x = 866,045,663.84/45,867.16
  6. Step 6: Final answer
    x = 18,881.61

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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.