Home / 86,729.13-119,688.54-48,487.61

Finding the Fourth Proportional to 86,729.13, 119,688.54 and 48,487.61

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Solution

The fourth proportional to 86,729.13, 119,688.54 and 48,487.61 is: 66,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,729.13 : 119,688.54 = 48,487.61 : x
  2. Step 2: Convert to fraction form
    86,729.13/119,688.54 = 48,487.61/x
  3. Step 3: Cross multiply
    86,729.13x = 119,688.54 × 48,487.61
  4. Step 4: Simplify right side
    86,729.13x = 5,803,411,366.38
  5. Step 5: Solve for x
    x = 5,803,411,366.38/86,729.13
  6. Step 6: Final answer
    x = 66,914.21

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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.