Home / 61,938.23-85,510.22-40,779

Finding the Fourth Proportional to 61,938.23, 85,510.22 and 40,779

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Solution

The fourth proportional to 61,938.23, 85,510.22 and 40,779 is: 56,298.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,938.23 : 85,510.22 = 40,779 : x
  2. Step 2: Convert to fraction form
    61,938.23/85,510.22 = 40,779/x
  3. Step 3: Cross multiply
    61,938.23x = 85,510.22 × 40,779
  4. Step 4: Simplify right side
    61,938.23x = 3,487,021,057.49
  5. Step 5: Solve for x
    x = 3,487,021,057.49/61,938.23
  6. Step 6: Final answer
    x = 56,298.37

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1.5x scale

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.