Home / 77,156.12-106,486.80-46,935.58

Finding the Fourth Proportional to 77,156.12, 106,486.80 and 46,935.58

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Solution

The fourth proportional to 77,156.12, 106,486.80 and 46,935.58 is: 64,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,156.12 : 106,486.80 = 46,935.58 : x
  2. Step 2: Convert to fraction form
    77,156.12/106,486.80 = 46,935.58/x
  3. Step 3: Cross multiply
    77,156.12x = 106,486.80 × 46,935.58
  4. Step 4: Simplify right side
    77,156.12x = 4,998,019,720.34
  5. Step 5: Solve for x
    x = 4,998,019,720.34/77,156.12
  6. Step 6: Final answer
    x = 64,778.01

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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.