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Finding the Fourth Proportional to 70,871, 97,800.93 and 39,039.92

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Solution

The fourth proportional to 70,871, 97,800.93 and 39,039.92 is: 53,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,871 : 97,800.93 = 39,039.92 : x
  2. Step 2: Convert to fraction form
    70,871/97,800.93 = 39,039.92/x
  3. Step 3: Cross multiply
    70,871x = 97,800.93 × 39,039.92
  4. Step 4: Simplify right side
    70,871x = 3,818,140,483.13
  5. Step 5: Solve for x
    x = 3,818,140,483.13/70,871
  6. Step 6: Final answer
    x = 53,874.51

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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.