Home / 55,281.35-76,288.55-31,409.34

Finding the Fourth Proportional to 55,281.35, 76,288.55 and 31,409.34

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Solution

The fourth proportional to 55,281.35, 76,288.55 and 31,409.34 is: 43,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281.35 : 76,288.55 = 31,409.34 : x
  2. Step 2: Convert to fraction form
    55,281.35/76,288.55 = 31,409.34/x
  3. Step 3: Cross multiply
    55,281.35x = 76,288.55 × 31,409.34
  4. Step 4: Simplify right side
    55,281.35x = 2,396,172,848.01
  5. Step 5: Solve for x
    x = 2,396,172,848.01/55,281.35
  6. Step 6: Final answer
    x = 43,345.05

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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.