Home / 91,433.18-125,897.40-80,038.92

Finding the Fourth Proportional to 91,433.18, 125,897.40 and 80,038.92

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Solution

The fourth proportional to 91,433.18, 125,897.40 and 80,038.92 is: 110,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,433.18 : 125,897.40 = 80,038.92 : x
  2. Step 2: Convert to fraction form
    91,433.18/125,897.40 = 80,038.92/x
  3. Step 3: Cross multiply
    91,433.18x = 125,897.40 × 80,038.92
  4. Step 4: Simplify right side
    91,433.18x = 10,076,691,926.81
  5. Step 5: Solve for x
    x = 10,076,691,926.81/91,433.18
  6. Step 6: Final answer
    x = 110,208.26

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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.