Home / 90,440.34-124,869.52-56,500.54

Finding the Fourth Proportional to 90,440.34, 124,869.52 and 56,500.54

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Solution

The fourth proportional to 90,440.34, 124,869.52 and 56,500.54 is: 78,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,440.34 : 124,869.52 = 56,500.54 : x
  2. Step 2: Convert to fraction form
    90,440.34/124,869.52 = 56,500.54/x
  3. Step 3: Cross multiply
    90,440.34x = 124,869.52 × 56,500.54
  4. Step 4: Simplify right side
    90,440.34x = 7,055,195,309.54
  5. Step 5: Solve for x
    x = 7,055,195,309.54/90,440.34
  6. Step 6: Final answer
    x = 78,009.39

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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.