Home / 70,887.06-97,828.25-40,672.13

Finding the Fourth Proportional to 70,887.06, 97,828.25 and 40,672.13

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Solution

The fourth proportional to 70,887.06, 97,828.25 and 40,672.13 is: 56,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,887.06 : 97,828.25 = 40,672.13 : x
  2. Step 2: Convert to fraction form
    70,887.06/97,828.25 = 40,672.13/x
  3. Step 3: Cross multiply
    70,887.06x = 97,828.25 × 40,672.13
  4. Step 4: Simplify right side
    70,887.06x = 3,978,882,609.17
  5. Step 5: Solve for x
    x = 3,978,882,609.17/70,887.06
  6. Step 6: Final answer
    x = 56,129.89

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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.