Home / 74,847.74-103,288.95-40,856.45

Finding the Fourth Proportional to 74,847.74, 103,288.95 and 40,856.45

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Solution

The fourth proportional to 74,847.74, 103,288.95 and 40,856.45 is: 56,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,847.74 : 103,288.95 = 40,856.45 : x
  2. Step 2: Convert to fraction form
    74,847.74/103,288.95 = 40,856.45/x
  3. Step 3: Cross multiply
    74,847.74x = 103,288.95 × 40,856.45
  4. Step 4: Simplify right side
    74,847.74x = 4,220,019,304.78
  5. Step 5: Solve for x
    x = 4,220,019,304.78/74,847.74
  6. Step 6: Final answer
    x = 56,381.39

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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.