Home / 53,415.15-73,704.71-30,749.76

Finding the Fourth Proportional to 53,415.15, 73,704.71 and 30,749.76

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Solution

The fourth proportional to 53,415.15, 73,704.71 and 30,749.76 is: 42,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,415.15 : 73,704.71 = 30,749.76 : x
  2. Step 2: Convert to fraction form
    53,415.15/73,704.71 = 30,749.76/x
  3. Step 3: Cross multiply
    53,415.15x = 73,704.71 × 30,749.76
  4. Step 4: Simplify right side
    53,415.15x = 2,266,402,143.37
  5. Step 5: Solve for x
    x = 2,266,402,143.37/53,415.15
  6. Step 6: Final answer
    x = 42,429.95

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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.