Home / 76,479.29-105,529.70-42,484.65

Finding the Fourth Proportional to 76,479.29, 105,529.70 and 42,484.65

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Solution

The fourth proportional to 76,479.29, 105,529.70 and 42,484.65 is: 58,622.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,479.29 : 105,529.70 = 42,484.65 : x
  2. Step 2: Convert to fraction form
    76,479.29/105,529.70 = 42,484.65/x
  3. Step 3: Cross multiply
    76,479.29x = 105,529.70 × 42,484.65
  4. Step 4: Simplify right side
    76,479.29x = 4,483,392,673.18
  5. Step 5: Solve for x
    x = 4,483,392,673.18/76,479.29
  6. Step 6: Final answer
    x = 58,622.31

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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.