Home / 76,383.46-105,409.03-42,392.35

Finding the Fourth Proportional to 76,383.46, 105,409.03 and 42,392.35

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Solution

The fourth proportional to 76,383.46, 105,409.03 and 42,392.35 is: 58,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,383.46 : 105,409.03 = 42,392.35 : x
  2. Step 2: Convert to fraction form
    76,383.46/105,409.03 = 42,392.35/x
  3. Step 3: Cross multiply
    76,383.46x = 105,409.03 × 42,392.35
  4. Step 4: Simplify right side
    76,383.46x = 4,468,536,492.92
  5. Step 5: Solve for x
    x = 4,468,536,492.92/76,383.46
  6. Step 6: Final answer
    x = 58,501.36

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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.