Home / 90,095.21-124,320.58-49,803.51

Finding the Fourth Proportional to 90,095.21, 124,320.58 and 49,803.51

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Solution

The fourth proportional to 90,095.21, 124,320.58 and 49,803.51 is: 68,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,095.21 : 124,320.58 = 49,803.51 : x
  2. Step 2: Convert to fraction form
    90,095.21/124,320.58 = 49,803.51/x
  3. Step 3: Cross multiply
    90,095.21x = 124,320.58 × 49,803.51
  4. Step 4: Simplify right side
    90,095.21x = 6,191,601,249.24
  5. Step 5: Solve for x
    x = 6,191,601,249.24/90,095.21
  6. Step 6: Final answer
    x = 68,722.87

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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.