Home / 76,364.48-105,381.60-42,371.84

Finding the Fourth Proportional to 76,364.48, 105,381.60 and 42,371.84

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Solution

The fourth proportional to 76,364.48, 105,381.60 and 42,371.84 is: 58,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,364.48 : 105,381.60 = 42,371.84 : x
  2. Step 2: Convert to fraction form
    76,364.48/105,381.60 = 42,371.84/x
  3. Step 3: Cross multiply
    76,364.48x = 105,381.60 × 42,371.84
  4. Step 4: Simplify right side
    76,364.48x = 4,465,212,294.14
  5. Step 5: Solve for x
    x = 4,465,212,294.14/76,364.48
  6. Step 6: Final answer
    x = 58,472.37

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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.