Home / 56,699.12-78,254.38-32,840.30

Finding the Fourth Proportional to 56,699.12, 78,254.38 and 32,840.30

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Solution

The fourth proportional to 56,699.12, 78,254.38 and 32,840.30 is: 45,325.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,699.12 : 78,254.38 = 32,840.30 : x
  2. Step 2: Convert to fraction form
    56,699.12/78,254.38 = 32,840.30/x
  3. Step 3: Cross multiply
    56,699.12x = 78,254.38 × 32,840.30
  4. Step 4: Simplify right side
    56,699.12x = 2,569,897,315.51
  5. Step 5: Solve for x
    x = 2,569,897,315.51/56,699.12
  6. Step 6: Final answer
    x = 45,325.17

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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.