Home / 57,969.45-86,966.64-17,987.63

Finding the Fourth Proportional to 57,969.45, 86,966.64 and 17,987.63

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Solution

The fourth proportional to 57,969.45, 86,966.64 and 17,987.63 is: 26,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,969.45 : 86,966.64 = 17,987.63 : x
  2. Step 2: Convert to fraction form
    57,969.45/86,966.64 = 17,987.63/x
  3. Step 3: Cross multiply
    57,969.45x = 86,966.64 × 17,987.63
  4. Step 4: Simplify right side
    57,969.45x = 1,564,323,307.83
  5. Step 5: Solve for x
    x = 1,564,323,307.83/57,969.45
  6. Step 6: Final answer
    x = 26,985.31

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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.