Home / 66,282.68-91,474.04-37,990.19

Finding the Fourth Proportional to 66,282.68, 91,474.04 and 37,990.19

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Solution

The fourth proportional to 66,282.68, 91,474.04 and 37,990.19 is: 52,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,282.68 : 91,474.04 = 37,990.19 : x
  2. Step 2: Convert to fraction form
    66,282.68/91,474.04 = 37,990.19/x
  3. Step 3: Cross multiply
    66,282.68x = 91,474.04 × 37,990.19
  4. Step 4: Simplify right side
    66,282.68x = 3,475,116,159.67
  5. Step 5: Solve for x
    x = 3,475,116,159.67/66,282.68
  6. Step 6: Final answer
    x = 52,428.72

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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.