Home / 59,990.16-89,987.70-20,574.38

Finding the Fourth Proportional to 59,990.16, 89,987.70 and 20,574.38

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Solution

The fourth proportional to 59,990.16, 89,987.70 and 20,574.38 is: 30,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,990.16 : 89,987.70 = 20,574.38 : x
  2. Step 2: Convert to fraction form
    59,990.16/89,987.70 = 20,574.38/x
  3. Step 3: Cross multiply
    59,990.16x = 89,987.70 × 20,574.38
  4. Step 4: Simplify right side
    59,990.16x = 1,851,441,135.13
  5. Step 5: Solve for x
    x = 1,851,441,135.13/59,990.16
  6. Step 6: Final answer
    x = 30,862.41

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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.