Home / 65,931.89-90,985.96-35,717.31

Finding the Fourth Proportional to 65,931.89, 90,985.96 and 35,717.31

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Solution

The fourth proportional to 65,931.89, 90,985.96 and 35,717.31 is: 49,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,931.89 : 90,985.96 = 35,717.31 : x
  2. Step 2: Convert to fraction form
    65,931.89/90,985.96 = 35,717.31/x
  3. Step 3: Cross multiply
    65,931.89x = 90,985.96 × 35,717.31
  4. Step 4: Simplify right side
    65,931.89x = 3,249,773,649.67
  5. Step 5: Solve for x
    x = 3,249,773,649.67/65,931.89
  6. Step 6: Final answer
    x = 49,289.86

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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.