Home / 76,626.39-105,744.95-42,636.31

Finding the Fourth Proportional to 76,626.39, 105,744.95 and 42,636.31

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Solution

The fourth proportional to 76,626.39, 105,744.95 and 42,636.31 is: 58,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,626.39 : 105,744.95 = 42,636.31 : x
  2. Step 2: Convert to fraction form
    76,626.39/105,744.95 = 42,636.31/x
  3. Step 3: Cross multiply
    76,626.39x = 105,744.95 × 42,636.31
  4. Step 4: Simplify right side
    76,626.39x = 4,508,574,469.13
  5. Step 5: Solve for x
    x = 4,508,574,469.13/76,626.39
  6. Step 6: Final answer
    x = 58,838.40

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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.