Home / 85,542.51-117,977.79-64,386.93

Finding the Fourth Proportional to 85,542.51, 117,977.79 and 64,386.93

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Solution

The fourth proportional to 85,542.51, 117,977.79 and 64,386.93 is: 88,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,542.51 : 117,977.79 = 64,386.93 : x
  2. Step 2: Convert to fraction form
    85,542.51/117,977.79 = 64,386.93/x
  3. Step 3: Cross multiply
    85,542.51x = 117,977.79 × 64,386.93
  4. Step 4: Simplify right side
    85,542.51x = 7,596,227,706.28
  5. Step 5: Solve for x
    x = 7,596,227,706.28/85,542.51
  6. Step 6: Final answer
    x = 88,800.62

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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.