Home / 57,555.05-79,438.23-38,681.24

Finding the Fourth Proportional to 57,555.05, 79,438.23 and 38,681.24

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Solution

The fourth proportional to 57,555.05, 79,438.23 and 38,681.24 is: 53,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,555.05 : 79,438.23 = 38,681.24 : x
  2. Step 2: Convert to fraction form
    57,555.05/79,438.23 = 38,681.24/x
  3. Step 3: Cross multiply
    57,555.05x = 79,438.23 × 38,681.24
  4. Step 4: Simplify right side
    57,555.05x = 3,072,769,239.81
  5. Step 5: Solve for x
    x = 3,072,769,239.81/57,555.05
  6. Step 6: Final answer
    x = 53,388.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.