Home / 56,528.21-78,009.25-31,035.68

Finding the Fourth Proportional to 56,528.21, 78,009.25 and 31,035.68

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Solution

The fourth proportional to 56,528.21, 78,009.25 and 31,035.68 is: 42,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,528.21 : 78,009.25 = 31,035.68 : x
  2. Step 2: Convert to fraction form
    56,528.21/78,009.25 = 31,035.68/x
  3. Step 3: Cross multiply
    56,528.21x = 78,009.25 × 31,035.68
  4. Step 4: Simplify right side
    56,528.21x = 2,421,070,237.47
  5. Step 5: Solve for x
    x = 2,421,070,237.47/56,528.21
  6. Step 6: Final answer
    x = 42,829.42

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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.