Home / 85,848.02-128,769.30-22,666.20

Finding the Fourth Proportional to 85,848.02, 128,769.30 and 22,666.20

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Solution

The fourth proportional to 85,848.02, 128,769.30 and 22,666.20 is: 33,998.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,848.02 : 128,769.30 = 22,666.20 : x
  2. Step 2: Convert to fraction form
    85,848.02/128,769.30 = 22,666.20/x
  3. Step 3: Cross multiply
    85,848.02x = 128,769.30 × 22,666.20
  4. Step 4: Simplify right side
    85,848.02x = 2,918,710,707.66
  5. Step 5: Solve for x
    x = 2,918,710,707.66/85,848.02
  6. Step 6: Final answer
    x = 33,998.58

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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.