Home / 76,191.36-105,138.24-42,652.80

Finding the Fourth Proportional to 76,191.36, 105,138.24 and 42,652.80

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Solution

The fourth proportional to 76,191.36, 105,138.24 and 42,652.80 is: 58,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,191.36 : 105,138.24 = 42,652.80 : x
  2. Step 2: Convert to fraction form
    76,191.36/105,138.24 = 42,652.80/x
  3. Step 3: Cross multiply
    76,191.36x = 105,138.24 × 42,652.80
  4. Step 4: Simplify right side
    76,191.36x = 4,484,440,323.07
  5. Step 5: Solve for x
    x = 4,484,440,323.07/76,191.36
  6. Step 6: Final answer
    x = 58,857.60

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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.