Home / 74,575.20-102,916.08-40,586.16

Finding the Fourth Proportional to 74,575.20, 102,916.08 and 40,586.16

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Solution

The fourth proportional to 74,575.20, 102,916.08 and 40,586.16 is: 56,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,575.20 : 102,916.08 = 40,586.16 : x
  2. Step 2: Convert to fraction form
    74,575.20/102,916.08 = 40,586.16/x
  3. Step 3: Cross multiply
    74,575.20x = 102,916.08 × 40,586.16
  4. Step 4: Simplify right side
    74,575.20x = 4,176,968,489.45
  5. Step 5: Solve for x
    x = 4,176,968,489.45/74,575.20
  6. Step 6: Final answer
    x = 56,010.15

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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.