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Finding the Fourth Proportional to 56,065.96, 77,405.70 and 45,879.40

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Solution

The fourth proportional to 56,065.96, 77,405.70 and 45,879.40 is: 63,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,065.96 : 77,405.70 = 45,879.40 : x
  2. Step 2: Convert to fraction form
    56,065.96/77,405.70 = 45,879.40/x
  3. Step 3: Cross multiply
    56,065.96x = 77,405.70 × 45,879.40
  4. Step 4: Simplify right side
    56,065.96x = 3,551,327,072.58
  5. Step 5: Solve for x
    x = 3,551,327,072.58/56,065.96
  6. Step 6: Final answer
    x = 63,341.95

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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.