Home / 55,004.52-75,907.98-31,130.76

Finding the Fourth Proportional to 55,004.52, 75,907.98 and 31,130.76

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Solution

The fourth proportional to 55,004.52, 75,907.98 and 31,130.76 is: 42,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004.52 : 75,907.98 = 31,130.76 : x
  2. Step 2: Convert to fraction form
    55,004.52/75,907.98 = 31,130.76/x
  3. Step 3: Cross multiply
    55,004.52x = 75,907.98 × 31,130.76
  4. Step 4: Simplify right side
    55,004.52x = 2,363,073,107.46
  5. Step 5: Solve for x
    x = 2,363,073,107.46/55,004.52
  6. Step 6: Final answer
    x = 42,961.43

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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.