Home / 88,248.48-121,734-55,923.72

Finding the Fourth Proportional to 88,248.48, 121,734 and 55,923.72

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Solution

The fourth proportional to 88,248.48, 121,734 and 55,923.72 is: 77,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,248.48 : 121,734 = 55,923.72 : x
  2. Step 2: Convert to fraction form
    88,248.48/121,734 = 55,923.72/x
  3. Step 3: Cross multiply
    88,248.48x = 121,734 × 55,923.72
  4. Step 4: Simplify right side
    88,248.48x = 6,807,818,130.48
  5. Step 5: Solve for x
    x = 6,807,818,130.48/88,248.48
  6. Step 6: Final answer
    x = 77,143.74

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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.