Home / 85,130.17-117,479.63-49,340.94

Finding the Fourth Proportional to 85,130.17, 117,479.63 and 49,340.94

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Solution

The fourth proportional to 85,130.17, 117,479.63 and 49,340.94 is: 68,090.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130.17 : 117,479.63 = 49,340.94 : x
  2. Step 2: Convert to fraction form
    85,130.17/117,479.63 = 49,340.94/x
  3. Step 3: Cross multiply
    85,130.17x = 117,479.63 × 49,340.94
  4. Step 4: Simplify right side
    85,130.17x = 5,796,555,074.01
  5. Step 5: Solve for x
    x = 5,796,555,074.01/85,130.17
  6. Step 6: Final answer
    x = 68,090.49

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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.