Home / 66,340.46-91,547.70-39,476.82

Finding the Fourth Proportional to 66,340.46, 91,547.70 and 39,476.82

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Solution

The fourth proportional to 66,340.46, 91,547.70 and 39,476.82 is: 54,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,340.46 : 91,547.70 = 39,476.82 : x
  2. Step 2: Convert to fraction form
    66,340.46/91,547.70 = 39,476.82/x
  3. Step 3: Cross multiply
    66,340.46x = 91,547.70 × 39,476.82
  4. Step 4: Simplify right side
    66,340.46x = 3,614,012,074.31
  5. Step 5: Solve for x
    x = 3,614,012,074.31/66,340.46
  6. Step 6: Final answer
    x = 54,476.74

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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.