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Finding the Fourth Proportional to 92,750.21, 139,011.30 and 42,760.92

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Solution

The fourth proportional to 92,750.21, 139,011.30 and 42,760.92 is: 64,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,750.21 : 139,011.30 = 42,760.92 : x
  2. Step 2: Convert to fraction form
    92,750.21/139,011.30 = 42,760.92/x
  3. Step 3: Cross multiply
    92,750.21x = 139,011.30 × 42,760.92
  4. Step 4: Simplify right side
    92,750.21x = 5,944,251,078.40
  5. Step 5: Solve for x
    x = 5,944,251,078.40/92,750.21
  6. Step 6: Final answer
    x = 64,088.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.