Home / 66,513.64-91,804.54-38,235.74

Finding the Fourth Proportional to 66,513.64, 91,804.54 and 38,235.74

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Solution

The fourth proportional to 66,513.64, 91,804.54 and 38,235.74 is: 52,774.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513.64 : 91,804.54 = 38,235.74 : x
  2. Step 2: Convert to fraction form
    66,513.64/91,804.54 = 38,235.74/x
  3. Step 3: Cross multiply
    66,513.64x = 91,804.54 × 38,235.74
  4. Step 4: Simplify right side
    66,513.64x = 3,510,214,522.26
  5. Step 5: Solve for x
    x = 3,510,214,522.26/66,513.64
  6. Step 6: Final answer
    x = 52,774.36

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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.