Home / 48,400.48-72,603.92-12,861.28

Finding the Fourth Proportional to 48,400.48, 72,603.92 and 12,861.28

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Solution

The fourth proportional to 48,400.48, 72,603.92 and 12,861.28 is: 19,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,400.48 : 72,603.92 = 12,861.28 : x
  2. Step 2: Convert to fraction form
    48,400.48/72,603.92 = 12,861.28/x
  3. Step 3: Cross multiply
    48,400.48x = 72,603.92 × 12,861.28
  4. Step 4: Simplify right side
    48,400.48x = 933,779,344.22
  5. Step 5: Solve for x
    x = 933,779,344.22/48,400.48
  6. Step 6: Final answer
    x = 19,292.77

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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.