Home / 51,060.79-70,465.10-28,400.70

Finding the Fourth Proportional to 51,060.79, 70,465.10 and 28,400.70

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Solution

The fourth proportional to 51,060.79, 70,465.10 and 28,400.70 is: 39,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,060.79 : 70,465.10 = 28,400.70 : x
  2. Step 2: Convert to fraction form
    51,060.79/70,465.10 = 28,400.70/x
  3. Step 3: Cross multiply
    51,060.79x = 70,465.10 × 28,400.70
  4. Step 4: Simplify right side
    51,060.79x = 2,001,258,023.57
  5. Step 5: Solve for x
    x = 2,001,258,023.57/51,060.79
  6. Step 6: Final answer
    x = 39,193.64

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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.