Home / 66,458.96-91,705.20-56,427.92

Finding the Fourth Proportional to 66,458.96, 91,705.20 and 56,427.92

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Solution

The fourth proportional to 66,458.96, 91,705.20 and 56,427.92 is: 77,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,458.96 : 91,705.20 = 56,427.92 : x
  2. Step 2: Convert to fraction form
    66,458.96/91,705.20 = 56,427.92/x
  3. Step 3: Cross multiply
    66,458.96x = 91,705.20 × 56,427.92
  4. Step 4: Simplify right side
    66,458.96x = 5,174,733,689.18
  5. Step 5: Solve for x
    x = 5,174,733,689.18/66,458.96
  6. Step 6: Final answer
    x = 77,863.60

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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.