Home / 76,344.53-105,356.30-42,353.84

Finding the Fourth Proportional to 76,344.53, 105,356.30 and 42,353.84

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Solution

The fourth proportional to 76,344.53, 105,356.30 and 42,353.84 is: 58,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,344.53 : 105,356.30 = 42,353.84 : x
  2. Step 2: Convert to fraction form
    76,344.53/105,356.30 = 42,353.84/x
  3. Step 3: Cross multiply
    76,344.53x = 105,356.30 × 42,353.84
  4. Step 4: Simplify right side
    76,344.53x = 4,462,243,332.18
  5. Step 5: Solve for x
    x = 4,462,243,332.18/76,344.53
  6. Step 6: Final answer
    x = 58,448.77

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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.