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Finding the Fourth Proportional to 64,172.90, 88,556.04 and 35,490.68

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Solution

The fourth proportional to 64,172.90, 88,556.04 and 35,490.68 is: 48,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,172.90 : 88,556.04 = 35,490.68 : x
  2. Step 2: Convert to fraction form
    64,172.90/88,556.04 = 35,490.68/x
  3. Step 3: Cross multiply
    64,172.90x = 88,556.04 × 35,490.68
  4. Step 4: Simplify right side
    64,172.90x = 3,142,914,077.71
  5. Step 5: Solve for x
    x = 3,142,914,077.71/64,172.90
  6. Step 6: Final answer
    x = 48,975.72

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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.