Home / 46,138.64-69,200.12-12,862.02

Finding the Fourth Proportional to 46,138.64, 69,200.12 and 12,862.02

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Solution

The fourth proportional to 46,138.64, 69,200.12 and 12,862.02 is: 19,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,138.64 : 69,200.12 = 12,862.02 : x
  2. Step 2: Convert to fraction form
    46,138.64/69,200.12 = 12,862.02/x
  3. Step 3: Cross multiply
    46,138.64x = 69,200.12 × 12,862.02
  4. Step 4: Simplify right side
    46,138.64x = 890,053,263.13
  5. Step 5: Solve for x
    x = 890,053,263.13/46,138.64
  6. Step 6: Final answer
    x = 19,290.85

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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.