Home / 56,124.70-77,451.37-30,631.48

Finding the Fourth Proportional to 56,124.70, 77,451.37 and 30,631.48

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Solution

The fourth proportional to 56,124.70, 77,451.37 and 30,631.48 is: 42,271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,124.70 : 77,451.37 = 30,631.48 : x
  2. Step 2: Convert to fraction form
    56,124.70/77,451.37 = 30,631.48/x
  3. Step 3: Cross multiply
    56,124.70x = 77,451.37 × 30,631.48
  4. Step 4: Simplify right side
    56,124.70x = 2,372,449,820.92
  5. Step 5: Solve for x
    x = 2,372,449,820.92/56,124.70
  6. Step 6: Final answer
    x = 42,271.05

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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.