Home / 84,799.50-117,017.40-47,070.78

Finding the Fourth Proportional to 84,799.50, 117,017.40 and 47,070.78

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Solution

The fourth proportional to 84,799.50, 117,017.40 and 47,070.78 is: 64,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,799.50 : 117,017.40 = 47,070.78 : x
  2. Step 2: Convert to fraction form
    84,799.50/117,017.40 = 47,070.78/x
  3. Step 3: Cross multiply
    84,799.50x = 117,017.40 × 47,070.78
  4. Step 4: Simplify right side
    84,799.50x = 5,508,100,291.57
  5. Step 5: Solve for x
    x = 5,508,100,291.57/84,799.50
  6. Step 6: Final answer
    x = 64,954.40

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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.