Home / 66,574.96-91,869.82-38,988.05

Finding the Fourth Proportional to 66,574.96, 91,869.82 and 38,988.05

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Solution

The fourth proportional to 66,574.96, 91,869.82 and 38,988.05 is: 53,801.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574.96 : 91,869.82 = 38,988.05 : x
  2. Step 2: Convert to fraction form
    66,574.96/91,869.82 = 38,988.05/x
  3. Step 3: Cross multiply
    66,574.96x = 91,869.82 × 38,988.05
  4. Step 4: Simplify right side
    66,574.96x = 3,581,824,578.83
  5. Step 5: Solve for x
    x = 3,581,824,578.83/66,574.96
  6. Step 6: Final answer
    x = 53,801.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.