Home / 58,145.65-87,218.81-20,707.18

Finding the Fourth Proportional to 58,145.65, 87,218.81 and 20,707.18

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Solution

The fourth proportional to 58,145.65, 87,218.81 and 20,707.18 is: 31,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,145.65 : 87,218.81 = 20,707.18 : x
  2. Step 2: Convert to fraction form
    58,145.65/87,218.81 = 20,707.18/x
  3. Step 3: Cross multiply
    58,145.65x = 87,218.81 × 20,707.18
  4. Step 4: Simplify right side
    58,145.65x = 1,806,055,354.12
  5. Step 5: Solve for x
    x = 1,806,055,354.12/58,145.65
  6. Step 6: Final answer
    x = 31,060.89

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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.