Home / 74,099.10-102,256.09-40,106.90

Finding the Fourth Proportional to 74,099.10, 102,256.09 and 40,106.90

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Solution

The fourth proportional to 74,099.10, 102,256.09 and 40,106.90 is: 55,347.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,099.10 : 102,256.09 = 40,106.90 : x
  2. Step 2: Convert to fraction form
    74,099.10/102,256.09 = 40,106.90/x
  3. Step 3: Cross multiply
    74,099.10x = 102,256.09 × 40,106.90
  4. Step 4: Simplify right side
    74,099.10x = 4,101,174,776.02
  5. Step 5: Solve for x
    x = 4,101,174,776.02/74,099.10
  6. Step 6: Final answer
    x = 55,347.16

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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.