Home / 90,365.15-124,702.13-54,556.67

Finding the Fourth Proportional to 90,365.15, 124,702.13 and 54,556.67

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Solution

The fourth proportional to 90,365.15, 124,702.13 and 54,556.67 is: 75,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,365.15 : 124,702.13 = 54,556.67 : x
  2. Step 2: Convert to fraction form
    90,365.15/124,702.13 = 54,556.67/x
  3. Step 3: Cross multiply
    90,365.15x = 124,702.13 × 54,556.67
  4. Step 4: Simplify right side
    90,365.15x = 6,803,333,402.85
  5. Step 5: Solve for x
    x = 6,803,333,402.85/90,365.15
  6. Step 6: Final answer
    x = 75,287.13

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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.