Home / 47,686.20-71,702.10-46,649.40

Finding the Fourth Proportional to 47,686.20, 71,702.10 and 46,649.40

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Solution

The fourth proportional to 47,686.20, 71,702.10 and 46,649.40 is: 70,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,686.20 : 71,702.10 = 46,649.40 : x
  2. Step 2: Convert to fraction form
    47,686.20/71,702.10 = 46,649.40/x
  3. Step 3: Cross multiply
    47,686.20x = 71,702.10 × 46,649.40
  4. Step 4: Simplify right side
    47,686.20x = 3,344,859,943.74
  5. Step 5: Solve for x
    x = 3,344,859,943.74/47,686.20
  6. Step 6: Final answer
    x = 70,143.14

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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.