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Finding the Fourth Proportional to 70,107.84, 96,751.26 and 39,897.72

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Solution

The fourth proportional to 70,107.84, 96,751.26 and 39,897.72 is: 55,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.84 : 96,751.26 = 39,897.72 : x
  2. Step 2: Convert to fraction form
    70,107.84/96,751.26 = 39,897.72/x
  3. Step 3: Cross multiply
    70,107.84x = 96,751.26 × 39,897.72
  4. Step 4: Simplify right side
    70,107.84x = 3,860,154,681.13
  5. Step 5: Solve for x
    x = 3,860,154,681.13/70,107.84
  6. Step 6: Final answer
    x = 55,060.24

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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.