Home / 85,430.94-128,173.82-41,060.90

Finding the Fourth Proportional to 85,430.94, 128,173.82 and 41,060.90

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Solution

The fourth proportional to 85,430.94, 128,173.82 and 41,060.90 is: 61,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,430.94 : 128,173.82 = 41,060.90 : x
  2. Step 2: Convert to fraction form
    85,430.94/128,173.82 = 41,060.90/x
  3. Step 3: Cross multiply
    85,430.94x = 128,173.82 × 41,060.90
  4. Step 4: Simplify right side
    85,430.94x = 5,262,931,559.46
  5. Step 5: Solve for x
    x = 5,262,931,559.46/85,430.94
  6. Step 6: Final answer
    x = 61,604.51

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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.