Home / 77,938.93-107,530.23-47,692.72

Finding the Fourth Proportional to 77,938.93, 107,530.23 and 47,692.72

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Solution

The fourth proportional to 77,938.93, 107,530.23 and 47,692.72 is: 65,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,938.93 : 107,530.23 = 47,692.72 : x
  2. Step 2: Convert to fraction form
    77,938.93/107,530.23 = 47,692.72/x
  3. Step 3: Cross multiply
    77,938.93x = 107,530.23 × 47,692.72
  4. Step 4: Simplify right side
    77,938.93x = 5,128,409,150.93
  5. Step 5: Solve for x
    x = 5,128,409,150.93/77,938.93
  6. Step 6: Final answer
    x = 65,800.35

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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.