Home / 45,118.84-67,678.26-13,953.40

Finding the Fourth Proportional to 45,118.84, 67,678.26 and 13,953.40

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Solution

The fourth proportional to 45,118.84, 67,678.26 and 13,953.40 is: 20,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.84 : 67,678.26 = 13,953.40 : x
  2. Step 2: Convert to fraction form
    45,118.84/67,678.26 = 13,953.40/x
  3. Step 3: Cross multiply
    45,118.84x = 67,678.26 × 13,953.40
  4. Step 4: Simplify right side
    45,118.84x = 944,341,833.08
  5. Step 5: Solve for x
    x = 944,341,833.08/45,118.84
  6. Step 6: Final answer
    x = 20,930.10

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1.5x scale

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.