Home / 51,118.20-76,677.30-42,953.40

Finding the Fourth Proportional to 51,118.20, 76,677.30 and 42,953.40

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Solution

The fourth proportional to 51,118.20, 76,677.30 and 42,953.40 is: 64,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,118.20 : 76,677.30 = 42,953.40 : x
  2. Step 2: Convert to fraction form
    51,118.20/76,677.30 = 42,953.40/x
  3. Step 3: Cross multiply
    51,118.20x = 76,677.30 × 42,953.40
  4. Step 4: Simplify right side
    51,118.20x = 3,293,550,737.82
  5. Step 5: Solve for x
    x = 3,293,550,737.82/51,118.20
  6. Step 6: Final answer
    x = 64,430.10

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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.