Home / 55,813.59-77,021.55-30,319.65

Finding the Fourth Proportional to 55,813.59, 77,021.55 and 30,319.65

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Solution

The fourth proportional to 55,813.59, 77,021.55 and 30,319.65 is: 41,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,813.59 : 77,021.55 = 30,319.65 : x
  2. Step 2: Convert to fraction form
    55,813.59/77,021.55 = 30,319.65/x
  3. Step 3: Cross multiply
    55,813.59x = 77,021.55 × 30,319.65
  4. Step 4: Simplify right side
    55,813.59x = 2,335,266,438.46
  5. Step 5: Solve for x
    x = 2,335,266,438.46/55,813.59
  6. Step 6: Final answer
    x = 41,840.46

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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.