Home / 81,555.83-122,292.23-31,650.24

Finding the Fourth Proportional to 81,555.83, 122,292.23 and 31,650.24

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Solution

The fourth proportional to 81,555.83, 122,292.23 and 31,650.24 is: 47,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,555.83 : 122,292.23 = 31,650.24 : x
  2. Step 2: Convert to fraction form
    81,555.83/122,292.23 = 31,650.24/x
  3. Step 3: Cross multiply
    81,555.83x = 122,292.23 × 31,650.24
  4. Step 4: Simplify right side
    81,555.83x = 3,870,578,271.38
  5. Step 5: Solve for x
    x = 3,870,578,271.38/81,555.83
  6. Step 6: Final answer
    x = 47,459.25

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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.