Home / 171,629.40-257,444.10-53,312.70

Finding the Fourth Proportional to 171,629.40, 257,444.10 and 53,312.70

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Solution

The fourth proportional to 171,629.40, 257,444.10 and 53,312.70 is: 79,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,629.40 : 257,444.10 = 53,312.70 : x
  2. Step 2: Convert to fraction form
    171,629.40/257,444.10 = 53,312.70/x
  3. Step 3: Cross multiply
    171,629.40x = 257,444.10 × 53,312.70
  4. Step 4: Simplify right side
    171,629.40x = 13,725,040,070.07
  5. Step 5: Solve for x
    x = 13,725,040,070.07/171,629.40
  6. Step 6: Final answer
    x = 79,969.05

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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.