Home / 66,848.91-92,242.71-39,981.62

Finding the Fourth Proportional to 66,848.91, 92,242.71 and 39,981.62

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Solution

The fourth proportional to 66,848.91, 92,242.71 and 39,981.62 is: 55,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,848.91 : 92,242.71 = 39,981.62 : x
  2. Step 2: Convert to fraction form
    66,848.91/92,242.71 = 39,981.62/x
  3. Step 3: Cross multiply
    66,848.91x = 92,242.71 × 39,981.62
  4. Step 4: Simplify right side
    66,848.91x = 3,688,012,978.99
  5. Step 5: Solve for x
    x = 3,688,012,978.99/66,848.91
  6. Step 6: Final answer
    x = 55,169.38

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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.