Home / 90,916.48-125,455.80-50,628.70

Finding the Fourth Proportional to 90,916.48, 125,455.80 and 50,628.70

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Solution

The fourth proportional to 90,916.48, 125,455.80 and 50,628.70 is: 69,862.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,916.48 : 125,455.80 = 50,628.70 : x
  2. Step 2: Convert to fraction form
    90,916.48/125,455.80 = 50,628.70/x
  3. Step 3: Cross multiply
    90,916.48x = 125,455.80 × 50,628.70
  4. Step 4: Simplify right side
    90,916.48x = 6,351,664,061.46
  5. Step 5: Solve for x
    x = 6,351,664,061.46/90,916.48
  6. Step 6: Final answer
    x = 69,862.63

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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.