Home / 56,055.90-84,065.34-20,509.14

Finding the Fourth Proportional to 56,055.90, 84,065.34 and 20,509.14

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Solution

The fourth proportional to 56,055.90, 84,065.34 and 20,509.14 is: 30,756.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,055.90 : 84,065.34 = 20,509.14 : x
  2. Step 2: Convert to fraction form
    56,055.90/84,065.34 = 20,509.14/x
  3. Step 3: Cross multiply
    56,055.90x = 84,065.34 × 20,509.14
  4. Step 4: Simplify right side
    56,055.90x = 1,724,107,827.21
  5. Step 5: Solve for x
    x = 1,724,107,827.21/56,055.90
  6. Step 6: Final answer
    x = 30,756.94

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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.