Home / 66,642.52-91,839.40-47,746.84

Finding the Fourth Proportional to 66,642.52, 91,839.40 and 47,746.84

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Solution

The fourth proportional to 66,642.52, 91,839.40 and 47,746.84 is: 65,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,642.52 : 91,839.40 = 47,746.84 : x
  2. Step 2: Convert to fraction form
    66,642.52/91,839.40 = 47,746.84/x
  3. Step 3: Cross multiply
    66,642.52x = 91,839.40 × 47,746.84
  4. Step 4: Simplify right side
    66,642.52x = 4,385,041,137.50
  5. Step 5: Solve for x
    x = 4,385,041,137.50/66,642.52
  6. Step 6: Final answer
    x = 65,799.45

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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.