Home / 66,037.47-91,199.28-61,805.62

Finding the Fourth Proportional to 66,037.47, 91,199.28 and 61,805.62

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Solution

The fourth proportional to 66,037.47, 91,199.28 and 61,805.62 is: 85,355.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,037.47 : 91,199.28 = 61,805.62 : x
  2. Step 2: Convert to fraction form
    66,037.47/91,199.28 = 61,805.62/x
  3. Step 3: Cross multiply
    66,037.47x = 91,199.28 × 61,805.62
  4. Step 4: Simplify right side
    66,037.47x = 5,636,628,043.95
  5. Step 5: Solve for x
    x = 5,636,628,043.95/66,037.47
  6. Step 6: Final answer
    x = 85,355.00

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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.