Home / 57,762.90-86,627.07-30,045.78

Finding the Fourth Proportional to 57,762.90, 86,627.07 and 30,045.78

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Solution

The fourth proportional to 57,762.90, 86,627.07 and 30,045.78 is: 45,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,762.90 : 86,627.07 = 30,045.78 : x
  2. Step 2: Convert to fraction form
    57,762.90/86,627.07 = 30,045.78/x
  3. Step 3: Cross multiply
    57,762.90x = 86,627.07 × 30,045.78
  4. Step 4: Simplify right side
    57,762.90x = 2,602,777,887.26
  5. Step 5: Solve for x
    x = 2,602,777,887.26/57,762.90
  6. Step 6: Final answer
    x = 45,059.68

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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.