Home / 74,940.10-103,417.41-40,948.90

Finding the Fourth Proportional to 74,940.10, 103,417.41 and 40,948.90

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Solution

The fourth proportional to 74,940.10, 103,417.41 and 40,948.90 is: 56,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,940.10 : 103,417.41 = 40,948.90 : x
  2. Step 2: Convert to fraction form
    74,940.10/103,417.41 = 40,948.90/x
  3. Step 3: Cross multiply
    74,940.10x = 103,417.41 × 40,948.90
  4. Step 4: Simplify right side
    74,940.10x = 4,234,829,180.35
  5. Step 5: Solve for x
    x = 4,234,829,180.35/74,940.10
  6. Step 6: Final answer
    x = 56,509.52

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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.