Home / 66,900.12-92,332.26-42,711.42

Finding the Fourth Proportional to 66,900.12, 92,332.26 and 42,711.42

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Solution

The fourth proportional to 66,900.12, 92,332.26 and 42,711.42 is: 58,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,900.12 : 92,332.26 = 42,711.42 : x
  2. Step 2: Convert to fraction form
    66,900.12/92,332.26 = 42,711.42/x
  3. Step 3: Cross multiply
    66,900.12x = 92,332.26 × 42,711.42
  4. Step 4: Simplify right side
    66,900.12x = 3,943,641,936.41
  5. Step 5: Solve for x
    x = 3,943,641,936.41/66,900.12
  6. Step 6: Final answer
    x = 58,948.20

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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.