Home / 55,631.16-83,445.93-13,511.57

Finding the Fourth Proportional to 55,631.16, 83,445.93 and 13,511.57

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Solution

The fourth proportional to 55,631.16, 83,445.93 and 13,511.57 is: 20,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.16 : 83,445.93 = 13,511.57 : x
  2. Step 2: Convert to fraction form
    55,631.16/83,445.93 = 13,511.57/x
  3. Step 3: Cross multiply
    55,631.16x = 83,445.93 × 13,511.57
  4. Step 4: Simplify right side
    55,631.16x = 1,127,485,107.18
  5. Step 5: Solve for x
    x = 1,127,485,107.18/55,631.16
  6. Step 6: Final answer
    x = 20,267.15

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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.