Home / 52,328.36-78,491.82-12,885.80

Finding the Fourth Proportional to 52,328.36, 78,491.82 and 12,885.80

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Solution

The fourth proportional to 52,328.36, 78,491.82 and 12,885.80 is: 19,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,328.36 : 78,491.82 = 12,885.80 : x
  2. Step 2: Convert to fraction form
    52,328.36/78,491.82 = 12,885.80/x
  3. Step 3: Cross multiply
    52,328.36x = 78,491.82 × 12,885.80
  4. Step 4: Simplify right side
    52,328.36x = 1,011,429,894.16
  5. Step 5: Solve for x
    x = 1,011,429,894.16/52,328.36
  6. Step 6: Final answer
    x = 19,328.52

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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.