Home / 90,391.76-124,698.44-56,876.24

Finding the Fourth Proportional to 90,391.76, 124,698.44 and 56,876.24

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Solution

The fourth proportional to 90,391.76, 124,698.44 and 56,876.24 is: 78,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,391.76 : 124,698.44 = 56,876.24 : x
  2. Step 2: Convert to fraction form
    90,391.76/124,698.44 = 56,876.24/x
  3. Step 3: Cross multiply
    90,391.76x = 124,698.44 × 56,876.24
  4. Step 4: Simplify right side
    90,391.76x = 7,092,378,401.07
  5. Step 5: Solve for x
    x = 7,092,378,401.07/90,391.76
  6. Step 6: Final answer
    x = 78,462.67

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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.