Home / 49,602.04-68,416.84-31,689.12

Finding the Fourth Proportional to 49,602.04, 68,416.84 and 31,689.12

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Solution

The fourth proportional to 49,602.04, 68,416.84 and 31,689.12 is: 43,709.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,602.04 : 68,416.84 = 31,689.12 : x
  2. Step 2: Convert to fraction form
    49,602.04/68,416.84 = 31,689.12/x
  3. Step 3: Cross multiply
    49,602.04x = 68,416.84 × 31,689.12
  4. Step 4: Simplify right side
    49,602.04x = 2,168,069,452.78
  5. Step 5: Solve for x
    x = 2,168,069,452.78/49,602.04
  6. Step 6: Final answer
    x = 43,709.28

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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.