Home / 77,577.60-106,820.16-58,485.12

Finding the Fourth Proportional to 77,577.60, 106,820.16 and 58,485.12

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Solution

The fourth proportional to 77,577.60, 106,820.16 and 58,485.12 is: 80,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,577.60 : 106,820.16 = 58,485.12 : x
  2. Step 2: Convert to fraction form
    77,577.60/106,820.16 = 58,485.12/x
  3. Step 3: Cross multiply
    77,577.60x = 106,820.16 × 58,485.12
  4. Step 4: Simplify right side
    77,577.60x = 6,247,389,876.02
  5. Step 5: Solve for x
    x = 6,247,389,876.02/77,577.60
  6. Step 6: Final answer
    x = 80,530.85

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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.