Home / 88,011.35-121,455-47,725.06

Finding the Fourth Proportional to 88,011.35, 121,455 and 47,725.06

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Solution

The fourth proportional to 88,011.35, 121,455 and 47,725.06 is: 65,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,011.35 : 121,455 = 47,725.06 : x
  2. Step 2: Convert to fraction form
    88,011.35/121,455 = 47,725.06/x
  3. Step 3: Cross multiply
    88,011.35x = 121,455 × 47,725.06
  4. Step 4: Simplify right side
    88,011.35x = 5,796,447,162.30
  5. Step 5: Solve for x
    x = 5,796,447,162.30/88,011.35
  6. Step 6: Final answer
    x = 65,860.22

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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.