Home / 56,079.99-77,389.22-30,929.49

Finding the Fourth Proportional to 56,079.99, 77,389.22 and 30,929.49

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Solution

The fourth proportional to 56,079.99, 77,389.22 and 30,929.49 is: 42,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,079.99 : 77,389.22 = 30,929.49 : x
  2. Step 2: Convert to fraction form
    56,079.99/77,389.22 = 30,929.49/x
  3. Step 3: Cross multiply
    56,079.99x = 77,389.22 × 30,929.49
  4. Step 4: Simplify right side
    56,079.99x = 2,393,608,951.45
  5. Step 5: Solve for x
    x = 2,393,608,951.45/56,079.99
  6. Step 6: Final answer
    x = 42,682.05

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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.