Home / 66,787.11-92,151-39,925.08

Finding the Fourth Proportional to 66,787.11, 92,151 and 39,925.08

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Solution

The fourth proportional to 66,787.11, 92,151 and 39,925.08 is: 55,087.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,787.11 : 92,151 = 39,925.08 : x
  2. Step 2: Convert to fraction form
    66,787.11/92,151 = 39,925.08/x
  3. Step 3: Cross multiply
    66,787.11x = 92,151 × 39,925.08
  4. Step 4: Simplify right side
    66,787.11x = 3,679,136,047.08
  5. Step 5: Solve for x
    x = 3,679,136,047.08/66,787.11
  6. Step 6: Final answer
    x = 55,087.52

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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.