Home / 77,068.12-106,365.30-45,254.44

Finding the Fourth Proportional to 77,068.12, 106,365.30 and 45,254.44

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Solution

The fourth proportional to 77,068.12, 106,365.30 and 45,254.44 is: 62,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,068.12 : 106,365.30 = 45,254.44 : x
  2. Step 2: Convert to fraction form
    77,068.12/106,365.30 = 45,254.44/x
  3. Step 3: Cross multiply
    77,068.12x = 106,365.30 × 45,254.44
  4. Step 4: Simplify right side
    77,068.12x = 4,813,502,086.93
  5. Step 5: Solve for x
    x = 4,813,502,086.93/77,068.12
  6. Step 6: Final answer
    x = 62,457.76

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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.