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Finding the Fourth Proportional to 70,750.84, 97,637.67 and 38,919.74

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Solution

The fourth proportional to 70,750.84, 97,637.67 and 38,919.74 is: 53,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,750.84 : 97,637.67 = 38,919.74 : x
  2. Step 2: Convert to fraction form
    70,750.84/97,637.67 = 38,919.74/x
  3. Step 3: Cross multiply
    70,750.84x = 97,637.67 × 38,919.74
  4. Step 4: Simplify right side
    70,750.84x = 3,800,032,730.61
  5. Step 5: Solve for x
    x = 3,800,032,730.61/70,750.84
  6. Step 6: Final answer
    x = 53,710.07

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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.