Home / 90,814.76-125,324.50-51,070.76

Finding the Fourth Proportional to 90,814.76, 125,324.50 and 51,070.76

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Solution

The fourth proportional to 90,814.76, 125,324.50 and 51,070.76 is: 70,477.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,814.76 : 125,324.50 = 51,070.76 : x
  2. Step 2: Convert to fraction form
    90,814.76/125,324.50 = 51,070.76/x
  3. Step 3: Cross multiply
    90,814.76x = 125,324.50 × 51,070.76
  4. Step 4: Simplify right side
    90,814.76x = 6,400,417,461.62
  5. Step 5: Solve for x
    x = 6,400,417,461.62/90,814.76
  6. Step 6: Final answer
    x = 70,477.72

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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.