Home / 66,263.59-91,436.93-39,400.91

Finding the Fourth Proportional to 66,263.59, 91,436.93 and 39,400.91

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Solution

The fourth proportional to 66,263.59, 91,436.93 and 39,400.91 is: 54,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,263.59 : 91,436.93 = 39,400.91 : x
  2. Step 2: Convert to fraction form
    66,263.59/91,436.93 = 39,400.91/x
  3. Step 3: Cross multiply
    66,263.59x = 91,436.93 × 39,400.91
  4. Step 4: Simplify right side
    66,263.59x = 3,602,698,546.04
  5. Step 5: Solve for x
    x = 3,602,698,546.04/66,263.59
  6. Step 6: Final answer
    x = 54,369.20

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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.