Home / 57,890.92-86,834.76-18,450.40

Finding the Fourth Proportional to 57,890.92, 86,834.76 and 18,450.40

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Solution

The fourth proportional to 57,890.92, 86,834.76 and 18,450.40 is: 27,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,890.92 : 86,834.76 = 18,450.40 : x
  2. Step 2: Convert to fraction form
    57,890.92/86,834.76 = 18,450.40/x
  3. Step 3: Cross multiply
    57,890.92x = 86,834.76 × 18,450.40
  4. Step 4: Simplify right side
    57,890.92x = 1,602,136,055.90
  5. Step 5: Solve for x
    x = 1,602,136,055.90/57,890.92
  6. Step 6: Final answer
    x = 27,675.08

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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.