Home / 66,680.10-92,030.85-42,836.58

Finding the Fourth Proportional to 66,680.10, 92,030.85 and 42,836.58

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Solution

The fourth proportional to 66,680.10, 92,030.85 and 42,836.58 is: 59,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,680.10 : 92,030.85 = 42,836.58 : x
  2. Step 2: Convert to fraction form
    66,680.10/92,030.85 = 42,836.58/x
  3. Step 3: Cross multiply
    66,680.10x = 92,030.85 × 42,836.58
  4. Step 4: Simplify right side
    66,680.10x = 3,942,286,868.49
  5. Step 5: Solve for x
    x = 3,942,286,868.49/66,680.10
  6. Step 6: Final answer
    x = 59,122.39

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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.