Home / 76,228.23-105,193.56-42,236.59

Finding the Fourth Proportional to 76,228.23, 105,193.56 and 42,236.59

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Solution

The fourth proportional to 76,228.23, 105,193.56 and 42,236.59 is: 58,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,228.23 : 105,193.56 = 42,236.59 : x
  2. Step 2: Convert to fraction form
    76,228.23/105,193.56 = 42,236.59/x
  3. Step 3: Cross multiply
    76,228.23x = 105,193.56 × 42,236.59
  4. Step 4: Simplify right side
    76,228.23x = 4,443,017,264.36
  5. Step 5: Solve for x
    x = 4,443,017,264.36/76,228.23
  6. Step 6: Final answer
    x = 58,285.72

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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.