Home / 76,376.04-105,394.68-42,384.12

Finding the Fourth Proportional to 76,376.04, 105,394.68 and 42,384.12

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Solution

The fourth proportional to 76,376.04, 105,394.68 and 42,384.12 is: 58,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,376.04 : 105,394.68 = 42,384.12 : x
  2. Step 2: Convert to fraction form
    76,376.04/105,394.68 = 42,384.12/x
  3. Step 3: Cross multiply
    76,376.04x = 105,394.68 × 42,384.12
  4. Step 4: Simplify right side
    76,376.04x = 4,467,060,764.48
  5. Step 5: Solve for x
    x = 4,467,060,764.48/76,376.04
  6. Step 6: Final answer
    x = 58,487.72

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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.