Home / 56,394.12-77,825.54-30,902.74

Finding the Fourth Proportional to 56,394.12, 77,825.54 and 30,902.74

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Solution

The fourth proportional to 56,394.12, 77,825.54 and 30,902.74 is: 42,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,394.12 : 77,825.54 = 30,902.74 : x
  2. Step 2: Convert to fraction form
    56,394.12/77,825.54 = 30,902.74/x
  3. Step 3: Cross multiply
    56,394.12x = 77,825.54 × 30,902.74
  4. Step 4: Simplify right side
    56,394.12x = 2,405,022,038.85
  5. Step 5: Solve for x
    x = 2,405,022,038.85/56,394.12
  6. Step 6: Final answer
    x = 42,646.68

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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.