Home / 66,681.34-92,021.85-38,000.39

Finding the Fourth Proportional to 66,681.34, 92,021.85 and 38,000.39

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Solution

The fourth proportional to 66,681.34, 92,021.85 and 38,000.39 is: 52,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,681.34 : 92,021.85 = 38,000.39 : x
  2. Step 2: Convert to fraction form
    66,681.34/92,021.85 = 38,000.39/x
  3. Step 3: Cross multiply
    66,681.34x = 92,021.85 × 38,000.39
  4. Step 4: Simplify right side
    66,681.34x = 3,496,865,728.41
  5. Step 5: Solve for x
    x = 3,496,865,728.41/66,681.34
  6. Step 6: Final answer
    x = 52,441.45

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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.