Home / 56,784.48-78,362.64-32,915.76

Finding the Fourth Proportional to 56,784.48, 78,362.64 and 32,915.76

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Solution

The fourth proportional to 56,784.48, 78,362.64 and 32,915.76 is: 45,423.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784.48 : 78,362.64 = 32,915.76 : x
  2. Step 2: Convert to fraction form
    56,784.48/78,362.64 = 32,915.76/x
  3. Step 3: Cross multiply
    56,784.48x = 78,362.64 × 32,915.76
  4. Step 4: Simplify right side
    56,784.48x = 2,579,365,851.21
  5. Step 5: Solve for x
    x = 2,579,365,851.21/56,784.48
  6. Step 6: Final answer
    x = 45,423.78

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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.