Home / 74,877.53-103,335.20-40,889.18

Finding the Fourth Proportional to 74,877.53, 103,335.20 and 40,889.18

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Solution

The fourth proportional to 74,877.53, 103,335.20 and 40,889.18 is: 56,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,877.53 : 103,335.20 = 40,889.18 : x
  2. Step 2: Convert to fraction form
    74,877.53/103,335.20 = 40,889.18/x
  3. Step 3: Cross multiply
    74,877.53x = 103,335.20 × 40,889.18
  4. Step 4: Simplify right side
    74,877.53x = 4,225,291,025.35
  5. Step 5: Solve for x
    x = 4,225,291,025.35/74,877.53
  6. Step 6: Final answer
    x = 56,429.36

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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.