Home / 74,150.02-102,328.68-42,318.28

Finding the Fourth Proportional to 74,150.02, 102,328.68 and 42,318.28

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Solution

The fourth proportional to 74,150.02, 102,328.68 and 42,318.28 is: 58,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.02 : 102,328.68 = 42,318.28 : x
  2. Step 2: Convert to fraction form
    74,150.02/102,328.68 = 42,318.28/x
  3. Step 3: Cross multiply
    74,150.02x = 102,328.68 × 42,318.28
  4. Step 4: Simplify right side
    74,150.02x = 4,330,373,732.27
  5. Step 5: Solve for x
    x = 4,330,373,732.27/74,150.02
  6. Step 6: Final answer
    x = 58,400.17

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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.