Home / 57,030.68-78,695.47-31,533.60

Finding the Fourth Proportional to 57,030.68, 78,695.47 and 31,533.60

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Solution

The fourth proportional to 57,030.68, 78,695.47 and 31,533.60 is: 43,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.68 : 78,695.47 = 31,533.60 : x
  2. Step 2: Convert to fraction form
    57,030.68/78,695.47 = 31,533.60/x
  3. Step 3: Cross multiply
    57,030.68x = 78,695.47 × 31,533.60
  4. Step 4: Simplify right side
    57,030.68x = 2,481,551,629.94
  5. Step 5: Solve for x
    x = 2,481,551,629.94/57,030.68
  6. Step 6: Final answer
    x = 43,512.57

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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.