Home / 90,668.03-125,137.84-52,421.50

Finding the Fourth Proportional to 90,668.03, 125,137.84 and 52,421.50

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Solution

The fourth proportional to 90,668.03, 125,137.84 and 52,421.50 is: 72,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,668.03 : 125,137.84 = 52,421.50 : x
  2. Step 2: Convert to fraction form
    90,668.03/125,137.84 = 52,421.50/x
  3. Step 3: Cross multiply
    90,668.03x = 125,137.84 × 52,421.50
  4. Step 4: Simplify right side
    90,668.03x = 6,559,913,607.73
  5. Step 5: Solve for x
    x = 6,559,913,607.73/90,668.03
  6. Step 6: Final answer
    x = 72,350.90

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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.