Home / 74,153.02-102,332.82-42,321.28

Finding the Fourth Proportional to 74,153.02, 102,332.82 and 42,321.28

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Solution

The fourth proportional to 74,153.02, 102,332.82 and 42,321.28 is: 58,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,153.02 : 102,332.82 = 42,321.28 : x
  2. Step 2: Convert to fraction form
    74,153.02/102,332.82 = 42,321.28/x
  3. Step 3: Cross multiply
    74,153.02x = 102,332.82 × 42,321.28
  4. Step 4: Simplify right side
    74,153.02x = 4,330,855,928.41
  5. Step 5: Solve for x
    x = 4,330,855,928.41/74,153.02
  6. Step 6: Final answer
    x = 58,404.31

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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.