Home / 45,141.89-67,672.55-21,434.81

Finding the Fourth Proportional to 45,141.89, 67,672.55 and 21,434.81

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Solution

The fourth proportional to 45,141.89, 67,672.55 and 21,434.81 is: 32,133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,141.89 : 67,672.55 = 21,434.81 : x
  2. Step 2: Convert to fraction form
    45,141.89/67,672.55 = 21,434.81/x
  3. Step 3: Cross multiply
    45,141.89x = 67,672.55 × 21,434.81
  4. Step 4: Simplify right side
    45,141.89x = 1,450,547,805.93
  5. Step 5: Solve for x
    x = 1,450,547,805.93/45,141.89
  6. Step 6: Final answer
    x = 32,133.08

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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.