Home / 56,424.60-84,638.12-20,887.67

Finding the Fourth Proportional to 56,424.60, 84,638.12 and 20,887.67

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Solution

The fourth proportional to 56,424.60, 84,638.12 and 20,887.67 is: 31,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,424.60 : 84,638.12 = 20,887.67 : x
  2. Step 2: Convert to fraction form
    56,424.60/84,638.12 = 20,887.67/x
  3. Step 3: Cross multiply
    56,424.60x = 84,638.12 × 20,887.67
  4. Step 4: Simplify right side
    56,424.60x = 1,767,893,227.14
  5. Step 5: Solve for x
    x = 1,767,893,227.14/56,424.60
  6. Step 6: Final answer
    x = 31,331.96

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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.