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Finding the Fourth Proportional to 70,837, 97,755.06 and 39,005.83

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Solution

The fourth proportional to 70,837, 97,755.06 and 39,005.83 is: 53,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,837 : 97,755.06 = 39,005.83 : x
  2. Step 2: Convert to fraction form
    70,837/97,755.06 = 39,005.83/x
  3. Step 3: Cross multiply
    70,837x = 97,755.06 × 39,005.83
  4. Step 4: Simplify right side
    70,837x = 3,813,017,252.00
  5. Step 5: Solve for x
    x = 3,813,017,252.00/70,837
  6. Step 6: Final answer
    x = 53,828.05

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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.