Home / 76,248.60-105,219.99-42,257.58

Finding the Fourth Proportional to 76,248.60, 105,219.99 and 42,257.58

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Solution

The fourth proportional to 76,248.60, 105,219.99 and 42,257.58 is: 58,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,248.60 : 105,219.99 = 42,257.58 : x
  2. Step 2: Convert to fraction form
    76,248.60/105,219.99 = 42,257.58/x
  3. Step 3: Cross multiply
    76,248.60x = 105,219.99 × 42,257.58
  4. Step 4: Simplify right side
    76,248.60x = 4,446,342,145.02
  5. Step 5: Solve for x
    x = 4,446,342,145.02/76,248.60
  6. Step 6: Final answer
    x = 58,313.75

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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.