Home / 58,031.21-87,071.40-31,705.22

Finding the Fourth Proportional to 58,031.21, 87,071.40 and 31,705.22

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Solution

The fourth proportional to 58,031.21, 87,071.40 and 31,705.22 is: 47,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,031.21 : 87,071.40 = 31,705.22 : x
  2. Step 2: Convert to fraction form
    58,031.21/87,071.40 = 31,705.22/x
  3. Step 3: Cross multiply
    58,031.21x = 87,071.40 × 31,705.22
  4. Step 4: Simplify right side
    58,031.21x = 2,760,617,457.35
  5. Step 5: Solve for x
    x = 2,760,617,457.35/58,031.21
  6. Step 6: Final answer
    x = 47,571.26

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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.