Home / 66,355.08-91,686.60-53,036.28

Finding the Fourth Proportional to 66,355.08, 91,686.60 and 53,036.28

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Solution

The fourth proportional to 66,355.08, 91,686.60 and 53,036.28 is: 73,283.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.08 : 91,686.60 = 53,036.28 : x
  2. Step 2: Convert to fraction form
    66,355.08/91,686.60 = 53,036.28/x
  3. Step 3: Cross multiply
    66,355.08x = 91,686.60 × 53,036.28
  4. Step 4: Simplify right side
    66,355.08x = 4,862,716,189.85
  5. Step 5: Solve for x
    x = 4,862,716,189.85/66,355.08
  6. Step 6: Final answer
    x = 73,283.25

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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.