Home / 86,916.16-119,950.24-49,190.40

Finding the Fourth Proportional to 86,916.16, 119,950.24 and 49,190.40

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Solution

The fourth proportional to 86,916.16, 119,950.24 and 49,190.40 is: 67,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,916.16 : 119,950.24 = 49,190.40 : x
  2. Step 2: Convert to fraction form
    86,916.16/119,950.24 = 49,190.40/x
  3. Step 3: Cross multiply
    86,916.16x = 119,950.24 × 49,190.40
  4. Step 4: Simplify right side
    86,916.16x = 5,900,400,285.70
  5. Step 5: Solve for x
    x = 5,900,400,285.70/86,916.16
  6. Step 6: Final answer
    x = 67,886.11

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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.