Home / 67,928.45-101,897.35-28,445.81

Finding the Fourth Proportional to 67,928.45, 101,897.35 and 28,445.81

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Solution

The fourth proportional to 67,928.45, 101,897.35 and 28,445.81 is: 42,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,928.45 : 101,897.35 = 28,445.81 : x
  2. Step 2: Convert to fraction form
    67,928.45/101,897.35 = 28,445.81/x
  3. Step 3: Cross multiply
    67,928.45x = 101,897.35 × 28,445.81
  4. Step 4: Simplify right side
    67,928.45x = 2,898,552,077.00
  5. Step 5: Solve for x
    x = 2,898,552,077.00/67,928.45
  6. Step 6: Final answer
    x = 42,670.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.