Home / 77,931.48-107,552.70-44,391

Finding the Fourth Proportional to 77,931.48, 107,552.70 and 44,391

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Solution

The fourth proportional to 77,931.48, 107,552.70 and 44,391 is: 61,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,931.48 : 107,552.70 = 44,391 : x
  2. Step 2: Convert to fraction form
    77,931.48/107,552.70 = 44,391/x
  3. Step 3: Cross multiply
    77,931.48x = 107,552.70 × 44,391
  4. Step 4: Simplify right side
    77,931.48x = 4,774,371,905.70
  5. Step 5: Solve for x
    x = 4,774,371,905.70/77,931.48
  6. Step 6: Final answer
    x = 61,263.71

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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.