Home / 83,900.12-115,782.10-46,174.40

Finding the Fourth Proportional to 83,900.12, 115,782.10 and 46,174.40

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Solution

The fourth proportional to 83,900.12, 115,782.10 and 46,174.40 is: 63,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,900.12 : 115,782.10 = 46,174.40 : x
  2. Step 2: Convert to fraction form
    83,900.12/115,782.10 = 46,174.40/x
  3. Step 3: Cross multiply
    83,900.12x = 115,782.10 × 46,174.40
  4. Step 4: Simplify right side
    83,900.12x = 5,346,168,998.24
  5. Step 5: Solve for x
    x = 5,346,168,998.24/83,900.12
  6. Step 6: Final answer
    x = 63,720.64

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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.