Home / 76,120.16-105,042.59-42,125.46

Finding the Fourth Proportional to 76,120.16, 105,042.59 and 42,125.46

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Solution

The fourth proportional to 76,120.16, 105,042.59 and 42,125.46 is: 58,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,120.16 : 105,042.59 = 42,125.46 : x
  2. Step 2: Convert to fraction form
    76,120.16/105,042.59 = 42,125.46/x
  3. Step 3: Cross multiply
    76,120.16x = 105,042.59 × 42,125.46
  4. Step 4: Simplify right side
    76,120.16x = 4,424,967,212.71
  5. Step 5: Solve for x
    x = 4,424,967,212.71/76,120.16
  6. Step 6: Final answer
    x = 58,131.35

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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.