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Finding the Fourth Proportional to 62,078.81, 85,674.71 and 38,219.45

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Solution

The fourth proportional to 62,078.81, 85,674.71 and 38,219.45 is: 52,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,078.81 : 85,674.71 = 38,219.45 : x
  2. Step 2: Convert to fraction form
    62,078.81/85,674.71 = 38,219.45/x
  3. Step 3: Cross multiply
    62,078.81x = 85,674.71 × 38,219.45
  4. Step 4: Simplify right side
    62,078.81x = 3,274,439,962.28
  5. Step 5: Solve for x
    x = 3,274,439,962.28/62,078.81
  6. Step 6: Final answer
    x = 52,746.50

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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.