Home / 76,246.08-105,219.52-42,712.32

Finding the Fourth Proportional to 76,246.08, 105,219.52 and 42,712.32

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Solution

The fourth proportional to 76,246.08, 105,219.52 and 42,712.32 is: 58,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,246.08 : 105,219.52 = 42,712.32 : x
  2. Step 2: Convert to fraction form
    76,246.08/105,219.52 = 42,712.32/x
  3. Step 3: Cross multiply
    76,246.08x = 105,219.52 × 42,712.32
  4. Step 4: Simplify right side
    76,246.08x = 4,494,169,808.49
  5. Step 5: Solve for x
    x = 4,494,169,808.49/76,246.08
  6. Step 6: Final answer
    x = 58,942.96

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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.