Home / 55,012.34-75,901.68-31,138.50

Finding the Fourth Proportional to 55,012.34, 75,901.68 and 31,138.50

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Solution

The fourth proportional to 55,012.34, 75,901.68 and 31,138.50 is: 42,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012.34 : 75,901.68 = 31,138.50 : x
  2. Step 2: Convert to fraction form
    55,012.34/75,901.68 = 31,138.50/x
  3. Step 3: Cross multiply
    55,012.34x = 75,901.68 × 31,138.50
  4. Step 4: Simplify right side
    55,012.34x = 2,363,464,462.68
  5. Step 5: Solve for x
    x = 2,363,464,462.68/55,012.34
  6. Step 6: Final answer
    x = 42,962.44

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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.