Home / 85,538.43-128,307.71-23,208.93

Finding the Fourth Proportional to 85,538.43, 128,307.71 and 23,208.93

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Solution

The fourth proportional to 85,538.43, 128,307.71 and 23,208.93 is: 34,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,538.43 : 128,307.71 = 23,208.93 : x
  2. Step 2: Convert to fraction form
    85,538.43/128,307.71 = 23,208.93/x
  3. Step 3: Cross multiply
    85,538.43x = 128,307.71 × 23,208.93
  4. Step 4: Simplify right side
    85,538.43x = 2,977,884,717.87
  5. Step 5: Solve for x
    x = 2,977,884,717.87/85,538.43
  6. Step 6: Final answer
    x = 34,813.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.