Home / 85,341.07-127,971.98-49,812.65

Finding the Fourth Proportional to 85,341.07, 127,971.98 and 49,812.65

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Solution

The fourth proportional to 85,341.07, 127,971.98 and 49,812.65 is: 74,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,341.07 : 127,971.98 = 49,812.65 : x
  2. Step 2: Convert to fraction form
    85,341.07/127,971.98 = 49,812.65/x
  3. Step 3: Cross multiply
    85,341.07x = 127,971.98 × 49,812.65
  4. Step 4: Simplify right side
    85,341.07x = 6,374,623,449.55
  5. Step 5: Solve for x
    x = 6,374,623,449.55/85,341.07
  6. Step 6: Final answer
    x = 74,695.85

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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.