Home / 76,293.09-105,280.80-42,302.96

Finding the Fourth Proportional to 76,293.09, 105,280.80 and 42,302.96

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Solution

The fourth proportional to 76,293.09, 105,280.80 and 42,302.96 is: 58,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,293.09 : 105,280.80 = 42,302.96 : x
  2. Step 2: Convert to fraction form
    76,293.09/105,280.80 = 42,302.96/x
  3. Step 3: Cross multiply
    76,293.09x = 105,280.80 × 42,302.96
  4. Step 4: Simplify right side
    76,293.09x = 4,453,689,180.93
  5. Step 5: Solve for x
    x = 4,453,689,180.93/76,293.09
  6. Step 6: Final answer
    x = 58,376.05

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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.