Home / 76,725.77-105,879.93-42,734.15

Finding the Fourth Proportional to 76,725.77, 105,879.93 and 42,734.15

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Solution

The fourth proportional to 76,725.77, 105,879.93 and 42,734.15 is: 58,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,725.77 : 105,879.93 = 42,734.15 : x
  2. Step 2: Convert to fraction form
    76,725.77/105,879.93 = 42,734.15/x
  3. Step 3: Cross multiply
    76,725.77x = 105,879.93 × 42,734.15
  4. Step 4: Simplify right side
    76,725.77x = 4,524,688,966.70
  5. Step 5: Solve for x
    x = 4,524,688,966.70/76,725.77
  6. Step 6: Final answer
    x = 58,972.22

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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.