Home / 76,110.07-105,029.31-42,119.99

Finding the Fourth Proportional to 76,110.07, 105,029.31 and 42,119.99

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Solution

The fourth proportional to 76,110.07, 105,029.31 and 42,119.99 is: 58,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,110.07 : 105,029.31 = 42,119.99 : x
  2. Step 2: Convert to fraction form
    76,110.07/105,029.31 = 42,119.99/x
  3. Step 3: Cross multiply
    76,110.07x = 105,029.31 × 42,119.99
  4. Step 4: Simplify right side
    76,110.07x = 4,423,833,486.91
  5. Step 5: Solve for x
    x = 4,423,833,486.91/76,110.07
  6. Step 6: Final answer
    x = 58,124.16

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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.