Home / 56,345.88-84,561.67-20,840.79

Finding the Fourth Proportional to 56,345.88, 84,561.67 and 20,840.79

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Solution

The fourth proportional to 56,345.88, 84,561.67 and 20,840.79 is: 31,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,345.88 : 84,561.67 = 20,840.79 : x
  2. Step 2: Convert to fraction form
    56,345.88/84,561.67 = 20,840.79/x
  3. Step 3: Cross multiply
    56,345.88x = 84,561.67 × 20,840.79
  4. Step 4: Simplify right side
    56,345.88x = 1,762,332,006.52
  5. Step 5: Solve for x
    x = 1,762,332,006.52/56,345.88
  6. Step 6: Final answer
    x = 31,277.03

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1.5x scale

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.