Home / 74,509.58-102,821.17-40,975.58

Finding the Fourth Proportional to 74,509.58, 102,821.17 and 40,975.58

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Solution

The fourth proportional to 74,509.58, 102,821.17 and 40,975.58 is: 56,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,509.58 : 102,821.17 = 40,975.58 : x
  2. Step 2: Convert to fraction form
    74,509.58/102,821.17 = 40,975.58/x
  3. Step 3: Cross multiply
    74,509.58x = 102,821.17 × 40,975.58
  4. Step 4: Simplify right side
    74,509.58x = 4,213,157,077.03
  5. Step 5: Solve for x
    x = 4,213,157,077.03/74,509.58
  6. Step 6: Final answer
    x = 56,545.17

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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.