Home / 56,297.57-77,690.34-30,803.49

Finding the Fourth Proportional to 56,297.57, 77,690.34 and 30,803.49

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Solution

The fourth proportional to 56,297.57, 77,690.34 and 30,803.49 is: 42,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,297.57 : 77,690.34 = 30,803.49 : x
  2. Step 2: Convert to fraction form
    56,297.57/77,690.34 = 30,803.49/x
  3. Step 3: Cross multiply
    56,297.57x = 77,690.34 × 30,803.49
  4. Step 4: Simplify right side
    56,297.57x = 2,393,133,611.29
  5. Step 5: Solve for x
    x = 2,393,133,611.29/56,297.57
  6. Step 6: Final answer
    x = 42,508.65

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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.