Home / 88,138.83-121,633.63-52,328.93

Finding the Fourth Proportional to 88,138.83, 121,633.63 and 52,328.93

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Solution

The fourth proportional to 88,138.83, 121,633.63 and 52,328.93 is: 72,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,138.83 : 121,633.63 = 52,328.93 : x
  2. Step 2: Convert to fraction form
    88,138.83/121,633.63 = 52,328.93/x
  3. Step 3: Cross multiply
    88,138.83x = 121,633.63 × 52,328.93
  4. Step 4: Simplify right side
    88,138.83x = 6,364,957,709.92
  5. Step 5: Solve for x
    x = 6,364,957,709.92/88,138.83
  6. Step 6: Final answer
    x = 72,215.14

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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.