Home / 56,107.63-77,430.15-30,958.75

Finding the Fourth Proportional to 56,107.63, 77,430.15 and 30,958.75

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Solution

The fourth proportional to 56,107.63, 77,430.15 and 30,958.75 is: 42,723.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,107.63 : 77,430.15 = 30,958.75 : x
  2. Step 2: Convert to fraction form
    56,107.63/77,430.15 = 30,958.75/x
  3. Step 3: Cross multiply
    56,107.63x = 77,430.15 × 30,958.75
  4. Step 4: Simplify right side
    56,107.63x = 2,397,140,114.37
  5. Step 5: Solve for x
    x = 2,397,140,114.37/56,107.63
  6. Step 6: Final answer
    x = 42,723.96

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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.