Home / 39,981.52-55,407.87-39,417.76

Finding the Fourth Proportional to 39,981.52, 55,407.87 and 39,417.76

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Solution

The fourth proportional to 39,981.52, 55,407.87 and 39,417.76 is: 54,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.52 : 55,407.87 = 39,417.76 : x
  2. Step 2: Convert to fraction form
    39,981.52/55,407.87 = 39,417.76/x
  3. Step 3: Cross multiply
    39,981.52x = 55,407.87 × 39,417.76
  4. Step 4: Simplify right side
    39,981.52x = 2,184,054,121.77
  5. Step 5: Solve for x
    x = 2,184,054,121.77/39,981.52
  6. Step 6: Final answer
    x = 54,626.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.