Home / 74,152.02-102,330.10-40,160.91

Finding the Fourth Proportional to 74,152.02, 102,330.10 and 40,160.91

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Solution

The fourth proportional to 74,152.02, 102,330.10 and 40,160.91 is: 55,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,152.02 : 102,330.10 = 40,160.91 : x
  2. Step 2: Convert to fraction form
    74,152.02/102,330.10 = 40,160.91/x
  3. Step 3: Cross multiply
    74,152.02x = 102,330.10 × 40,160.91
  4. Step 4: Simplify right side
    74,152.02x = 4,109,669,936.39
  5. Step 5: Solve for x
    x = 4,109,669,936.39/74,152.02
  6. Step 6: Final answer
    x = 55,422.22

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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.