Home / 57,020.59-78,685.23-31,525.47

Finding the Fourth Proportional to 57,020.59, 78,685.23 and 31,525.47

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Solution

The fourth proportional to 57,020.59, 78,685.23 and 31,525.47 is: 43,503.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,020.59 : 78,685.23 = 31,525.47 : x
  2. Step 2: Convert to fraction form
    57,020.59/78,685.23 = 31,525.47/x
  3. Step 3: Cross multiply
    57,020.59x = 78,685.23 × 31,525.47
  4. Step 4: Simplify right side
    57,020.59x = 2,480,588,857.81
  5. Step 5: Solve for x
    x = 2,480,588,857.81/57,020.59
  6. Step 6: Final answer
    x = 43,503.39

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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.