Home / 86,493.09-129,735-23,312.19

Finding the Fourth Proportional to 86,493.09, 129,735 and 23,312.19

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Solution

The fourth proportional to 86,493.09, 129,735 and 23,312.19 is: 34,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,493.09 : 129,735 = 23,312.19 : x
  2. Step 2: Convert to fraction form
    86,493.09/129,735 = 23,312.19/x
  3. Step 3: Cross multiply
    86,493.09x = 129,735 × 23,312.19
  4. Step 4: Simplify right side
    86,493.09x = 3,024,406,969.65
  5. Step 5: Solve for x
    x = 3,024,406,969.65/86,493.09
  6. Step 6: Final answer
    x = 34,967.04

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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.