Home / 84,780.28-117,002.10-47,055.16

Finding the Fourth Proportional to 84,780.28, 117,002.10 and 47,055.16

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Solution

The fourth proportional to 84,780.28, 117,002.10 and 47,055.16 is: 64,939.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,780.28 : 117,002.10 = 47,055.16 : x
  2. Step 2: Convert to fraction form
    84,780.28/117,002.10 = 47,055.16/x
  3. Step 3: Cross multiply
    84,780.28x = 117,002.10 × 47,055.16
  4. Step 4: Simplify right side
    84,780.28x = 5,505,552,535.84
  5. Step 5: Solve for x
    x = 5,505,552,535.84/84,780.28
  6. Step 6: Final answer
    x = 64,939.07

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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.