Home / 74,724.60-103,118.54-40,733.40

Finding the Fourth Proportional to 74,724.60, 103,118.54 and 40,733.40

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Solution

The fourth proportional to 74,724.60, 103,118.54 and 40,733.40 is: 56,211.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,724.60 : 103,118.54 = 40,733.40 : x
  2. Step 2: Convert to fraction form
    74,724.60/103,118.54 = 40,733.40/x
  3. Step 3: Cross multiply
    74,724.60x = 103,118.54 × 40,733.40
  4. Step 4: Simplify right side
    74,724.60x = 4,200,368,737.24
  5. Step 5: Solve for x
    x = 4,200,368,737.24/74,724.60
  6. Step 6: Final answer
    x = 56,211.32

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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.