Home / 66,436.02-91,685.79-38,145.96

Finding the Fourth Proportional to 66,436.02, 91,685.79 and 38,145.96

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Solution

The fourth proportional to 66,436.02, 91,685.79 and 38,145.96 is: 52,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.02 : 91,685.79 = 38,145.96 : x
  2. Step 2: Convert to fraction form
    66,436.02/91,685.79 = 38,145.96/x
  3. Step 3: Cross multiply
    66,436.02x = 91,685.79 × 38,145.96
  4. Step 4: Simplify right side
    66,436.02x = 3,497,442,477.91
  5. Step 5: Solve for x
    x = 3,497,442,477.91/66,436.02
  6. Step 6: Final answer
    x = 52,643.77

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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.