Home / 88,018.13-121,465.08-47,731.88

Finding the Fourth Proportional to 88,018.13, 121,465.08 and 47,731.88

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Solution

The fourth proportional to 88,018.13, 121,465.08 and 47,731.88 is: 65,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,018.13 : 121,465.08 = 47,731.88 : x
  2. Step 2: Convert to fraction form
    88,018.13/121,465.08 = 47,731.88/x
  3. Step 3: Cross multiply
    88,018.13x = 121,465.08 × 47,731.88
  4. Step 4: Simplify right side
    88,018.13x = 5,797,756,015.43
  5. Step 5: Solve for x
    x = 5,797,756,015.43/88,018.13
  6. Step 6: Final answer
    x = 65,870.02

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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.