Home / 74,427.72-102,709.80-40,435.92

Finding the Fourth Proportional to 74,427.72, 102,709.80 and 40,435.92

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Solution

The fourth proportional to 74,427.72, 102,709.80 and 40,435.92 is: 55,801.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.72 : 102,709.80 = 40,435.92 : x
  2. Step 2: Convert to fraction form
    74,427.72/102,709.80 = 40,435.92/x
  3. Step 3: Cross multiply
    74,427.72x = 102,709.80 × 40,435.92
  4. Step 4: Simplify right side
    74,427.72x = 4,153,165,256.02
  5. Step 5: Solve for x
    x = 4,153,165,256.02/74,427.72
  6. Step 6: Final answer
    x = 55,801.32

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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.