Home / 55,085.40-76,017.22-30,886.25

Finding the Fourth Proportional to 55,085.40, 76,017.22 and 30,886.25

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Solution

The fourth proportional to 55,085.40, 76,017.22 and 30,886.25 is: 42,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,085.40 : 76,017.22 = 30,886.25 : x
  2. Step 2: Convert to fraction form
    55,085.40/76,017.22 = 30,886.25/x
  3. Step 3: Cross multiply
    55,085.40x = 76,017.22 × 30,886.25
  4. Step 4: Simplify right side
    55,085.40x = 2,347,886,403.92
  5. Step 5: Solve for x
    x = 2,347,886,403.92/55,085.40
  6. Step 6: Final answer
    x = 42,622.66

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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.