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Finding the Fourth Proportional to 57,125.71, 78,809.04 and 34,451.81

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Solution

The fourth proportional to 57,125.71, 78,809.04 and 34,451.81 is: 47,528.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,125.71 : 78,809.04 = 34,451.81 : x
  2. Step 2: Convert to fraction form
    57,125.71/78,809.04 = 34,451.81/x
  3. Step 3: Cross multiply
    57,125.71x = 78,809.04 × 34,451.81
  4. Step 4: Simplify right side
    57,125.71x = 2,715,113,678.32
  5. Step 5: Solve for x
    x = 2,715,113,678.32/57,125.71
  6. Step 6: Final answer
    x = 47,528.75

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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.