Home / 92,698.38-139,011.54-31,897.05

Finding the Fourth Proportional to 92,698.38, 139,011.54 and 31,897.05

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Solution

The fourth proportional to 92,698.38, 139,011.54 and 31,897.05 is: 47,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,698.38 : 139,011.54 = 31,897.05 : x
  2. Step 2: Convert to fraction form
    92,698.38/139,011.54 = 31,897.05/x
  3. Step 3: Cross multiply
    92,698.38x = 139,011.54 × 31,897.05
  4. Step 4: Simplify right side
    92,698.38x = 4,434,058,041.96
  5. Step 5: Solve for x
    x = 4,434,058,041.96/92,698.38
  6. Step 6: Final answer
    x = 47,833.18

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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.