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Finding the Fourth Proportional to 66,612.84, 99,968.56 and 31,552.56

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Solution

The fourth proportional to 66,612.84, 99,968.56 and 31,552.56 is: 47,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,612.84 : 99,968.56 = 31,552.56 : x
  2. Step 2: Convert to fraction form
    66,612.84/99,968.56 = 31,552.56/x
  3. Step 3: Cross multiply
    66,612.84x = 99,968.56 × 31,552.56
  4. Step 4: Simplify right side
    66,612.84x = 3,154,263,987.51
  5. Step 5: Solve for x
    x = 3,154,263,987.51/66,612.84
  6. Step 6: Final answer
    x = 47,352.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.