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Finding the Fourth Proportional to 70,102.02, 96,746.31 and 39,888.62

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Solution

The fourth proportional to 70,102.02, 96,746.31 and 39,888.62 is: 55,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,102.02 : 96,746.31 = 39,888.62 : x
  2. Step 2: Convert to fraction form
    70,102.02/96,746.31 = 39,888.62/x
  3. Step 3: Cross multiply
    70,102.02x = 96,746.31 × 39,888.62
  4. Step 4: Simplify right side
    70,102.02x = 3,859,076,312.26
  5. Step 5: Solve for x
    x = 3,859,076,312.26/70,102.02
  6. Step 6: Final answer
    x = 55,049.43

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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.