Home / 74,224.07-102,429.21-40,690.07

Finding the Fourth Proportional to 74,224.07, 102,429.21 and 40,690.07

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Solution

The fourth proportional to 74,224.07, 102,429.21 and 40,690.07 is: 56,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,224.07 : 102,429.21 = 40,690.07 : x
  2. Step 2: Convert to fraction form
    74,224.07/102,429.21 = 40,690.07/x
  3. Step 3: Cross multiply
    74,224.07x = 102,429.21 × 40,690.07
  4. Step 4: Simplify right side
    74,224.07x = 4,167,851,009.35
  5. Step 5: Solve for x
    x = 4,167,851,009.35/74,224.07
  6. Step 6: Final answer
    x = 56,152.29

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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.