Home / 97,773.12-134,920.80-55,336.32

Finding the Fourth Proportional to 97,773.12, 134,920.80 and 55,336.32

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Solution

The fourth proportional to 97,773.12, 134,920.80 and 55,336.32 is: 76,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,773.12 : 134,920.80 = 55,336.32 : x
  2. Step 2: Convert to fraction form
    97,773.12/134,920.80 = 55,336.32/x
  3. Step 3: Cross multiply
    97,773.12x = 134,920.80 × 55,336.32
  4. Step 4: Simplify right side
    97,773.12x = 7,466,020,563.46
  5. Step 5: Solve for x
    x = 7,466,020,563.46/97,773.12
  6. Step 6: Final answer
    x = 76,360.67

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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.