Home / 115,019.51-172,279.76-55,730.84

Finding the Fourth Proportional to 115,019.51, 172,279.76 and 55,730.84

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Solution

The fourth proportional to 115,019.51, 172,279.76 and 55,730.84 is: 83,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,019.51 : 172,279.76 = 55,730.84 : x
  2. Step 2: Convert to fraction form
    115,019.51/172,279.76 = 55,730.84/x
  3. Step 3: Cross multiply
    115,019.51x = 172,279.76 × 55,730.84
  4. Step 4: Simplify right side
    115,019.51x = 9,601,294,599.75
  5. Step 5: Solve for x
    x = 9,601,294,599.75/115,019.51
  6. Step 6: Final answer
    x = 83,475.36

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1.5x scale

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.