Home / 85,261.19-117,573.30-56,570.81

Finding the Fourth Proportional to 85,261.19, 117,573.30 and 56,570.81

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Solution

The fourth proportional to 85,261.19, 117,573.30 and 56,570.81 is: 78,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,261.19 : 117,573.30 = 56,570.81 : x
  2. Step 2: Convert to fraction form
    85,261.19/117,573.30 = 56,570.81/x
  3. Step 3: Cross multiply
    85,261.19x = 117,573.30 × 56,570.81
  4. Step 4: Simplify right side
    85,261.19x = 6,651,216,227.51
  5. Step 5: Solve for x
    x = 6,651,216,227.51/85,261.19
  6. Step 6: Final answer
    x = 78,009.90

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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.