Home / 90,750.89-125,239.26-49,916.74

Finding the Fourth Proportional to 90,750.89, 125,239.26 and 49,916.74

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Solution

The fourth proportional to 90,750.89, 125,239.26 and 49,916.74 is: 68,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,750.89 : 125,239.26 = 49,916.74 : x
  2. Step 2: Convert to fraction form
    90,750.89/125,239.26 = 49,916.74/x
  3. Step 3: Cross multiply
    90,750.89x = 125,239.26 × 49,916.74
  4. Step 4: Simplify right side
    90,750.89x = 6,251,536,216.48
  5. Step 5: Solve for x
    x = 6,251,536,216.48/90,750.89
  6. Step 6: Final answer
    x = 68,886.77

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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.