Home / 61,191.07-91,638.40-31,126.21

Finding the Fourth Proportional to 61,191.07, 91,638.40 and 31,126.21

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Solution

The fourth proportional to 61,191.07, 91,638.40 and 31,126.21 is: 46,613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,191.07 : 91,638.40 = 31,126.21 : x
  2. Step 2: Convert to fraction form
    61,191.07/91,638.40 = 31,126.21/x
  3. Step 3: Cross multiply
    61,191.07x = 91,638.40 × 31,126.21
  4. Step 4: Simplify right side
    61,191.07x = 2,852,356,082.46
  5. Step 5: Solve for x
    x = 2,852,356,082.46/61,191.07
  6. Step 6: Final answer
    x = 46,613.93

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1.5x scale

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.