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Finding the Fourth Proportional to 56,501.67, 84,719.69 and 21,422.19

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Solution

The fourth proportional to 56,501.67, 84,719.69 and 21,422.19 is: 32,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,501.67 : 84,719.69 = 21,422.19 : x
  2. Step 2: Convert to fraction form
    56,501.67/84,719.69 = 21,422.19/x
  3. Step 3: Cross multiply
    56,501.67x = 84,719.69 × 21,422.19
  4. Step 4: Simplify right side
    56,501.67x = 1,814,881,188.81
  5. Step 5: Solve for x
    x = 1,814,881,188.81/56,501.67
  6. Step 6: Final answer
    x = 32,120.84

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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.