Home / 74,738.48-103,139.04-40,746.96

Finding the Fourth Proportional to 74,738.48, 103,139.04 and 40,746.96

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Solution

The fourth proportional to 74,738.48, 103,139.04 and 40,746.96 is: 56,230.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,738.48 : 103,139.04 = 40,746.96 : x
  2. Step 2: Convert to fraction form
    74,738.48/103,139.04 = 40,746.96/x
  3. Step 3: Cross multiply
    74,738.48x = 103,139.04 × 40,746.96
  4. Step 4: Simplify right side
    74,738.48x = 4,202,602,337.32
  5. Step 5: Solve for x
    x = 4,202,602,337.32/74,738.48
  6. Step 6: Final answer
    x = 56,230.77

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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.