Home / 52,031.76-78,047.84-12,588.81

Finding the Fourth Proportional to 52,031.76, 78,047.84 and 12,588.81

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Solution

The fourth proportional to 52,031.76, 78,047.84 and 12,588.81 is: 18,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,031.76 : 78,047.84 = 12,588.81 : x
  2. Step 2: Convert to fraction form
    52,031.76/78,047.84 = 12,588.81/x
  3. Step 3: Cross multiply
    52,031.76x = 78,047.84 × 12,588.81
  4. Step 4: Simplify right side
    52,031.76x = 982,529,428.67
  5. Step 5: Solve for x
    x = 982,529,428.67/52,031.76
  6. Step 6: Final answer
    x = 18,883.26

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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.