Home / 92,858.70-128,145.36-50,417.22

Finding the Fourth Proportional to 92,858.70, 128,145.36 and 50,417.22

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Solution

The fourth proportional to 92,858.70, 128,145.36 and 50,417.22 is: 69,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,858.70 : 128,145.36 = 50,417.22 : x
  2. Step 2: Convert to fraction form
    92,858.70/128,145.36 = 50,417.22/x
  3. Step 3: Cross multiply
    92,858.70x = 128,145.36 × 50,417.22
  4. Step 4: Simplify right side
    92,858.70x = 6,460,732,807.10
  5. Step 5: Solve for x
    x = 6,460,732,807.10/92,858.70
  6. Step 6: Final answer
    x = 69,575.96

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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.