Home / 52,434.29-78,620.32-20,827.35

Finding the Fourth Proportional to 52,434.29, 78,620.32 and 20,827.35

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Solution

The fourth proportional to 52,434.29, 78,620.32 and 20,827.35 is: 31,228.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,434.29 : 78,620.32 = 20,827.35 : x
  2. Step 2: Convert to fraction form
    52,434.29/78,620.32 = 20,827.35/x
  3. Step 3: Cross multiply
    52,434.29x = 78,620.32 × 20,827.35
  4. Step 4: Simplify right side
    52,434.29x = 1,637,453,168.91
  5. Step 5: Solve for x
    x = 1,637,453,168.91/52,434.29
  6. Step 6: Final answer
    x = 31,228.67

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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.