Home / 74,493.12-102,802.32-40,959.12

Finding the Fourth Proportional to 74,493.12, 102,802.32 and 40,959.12

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Solution

The fourth proportional to 74,493.12, 102,802.32 and 40,959.12 is: 56,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,493.12 : 102,802.32 = 40,959.12 : x
  2. Step 2: Convert to fraction form
    74,493.12/102,802.32 = 40,959.12/x
  3. Step 3: Cross multiply
    74,493.12x = 102,802.32 × 40,959.12
  4. Step 4: Simplify right side
    74,493.12x = 4,210,692,561.16
  5. Step 5: Solve for x
    x = 4,210,692,561.16/74,493.12
  6. Step 6: Final answer
    x = 56,524.58

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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.