Home / 57,021.20-78,686.08-31,526.07

Finding the Fourth Proportional to 57,021.20, 78,686.08 and 31,526.07

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Solution

The fourth proportional to 57,021.20, 78,686.08 and 31,526.07 is: 43,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.20 : 78,686.08 = 31,526.07 : x
  2. Step 2: Convert to fraction form
    57,021.20/78,686.08 = 31,526.07/x
  3. Step 3: Cross multiply
    57,021.20x = 78,686.08 × 31,526.07
  4. Step 4: Simplify right side
    57,021.20x = 2,480,662,866.11
  5. Step 5: Solve for x
    x = 2,480,662,866.11/57,021.20
  6. Step 6: Final answer
    x = 43,504.22

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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.