Home / 78,329.40-108,094.23-42,519.12

Finding the Fourth Proportional to 78,329.40, 108,094.23 and 42,519.12

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Solution

The fourth proportional to 78,329.40, 108,094.23 and 42,519.12 is: 58,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,329.40 : 108,094.23 = 42,519.12 : x
  2. Step 2: Convert to fraction form
    78,329.40/108,094.23 = 42,519.12/x
  3. Step 3: Cross multiply
    78,329.40x = 108,094.23 × 42,519.12
  4. Step 4: Simplify right side
    78,329.40x = 4,596,071,536.68
  5. Step 5: Solve for x
    x = 4,596,071,536.68/78,329.40
  6. Step 6: Final answer
    x = 58,676.20

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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.