Home / 56,852.19-78,456.63-31,359.67

Finding the Fourth Proportional to 56,852.19, 78,456.63 and 31,359.67

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Solution

The fourth proportional to 56,852.19, 78,456.63 and 31,359.67 is: 43,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,852.19 : 78,456.63 = 31,359.67 : x
  2. Step 2: Convert to fraction form
    56,852.19/78,456.63 = 31,359.67/x
  3. Step 3: Cross multiply
    56,852.19x = 78,456.63 × 31,359.67
  4. Step 4: Simplify right side
    56,852.19x = 2,460,374,026.11
  5. Step 5: Solve for x
    x = 2,460,374,026.11/56,852.19
  6. Step 6: Final answer
    x = 43,276.68

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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.