Home / 57,018.21-78,681.74-31,523.05

Finding the Fourth Proportional to 57,018.21, 78,681.74 and 31,523.05

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Solution

The fourth proportional to 57,018.21, 78,681.74 and 31,523.05 is: 43,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.21 : 78,681.74 = 31,523.05 : x
  2. Step 2: Convert to fraction form
    57,018.21/78,681.74 = 31,523.05/x
  3. Step 3: Cross multiply
    57,018.21x = 78,681.74 × 31,523.05
  4. Step 4: Simplify right side
    57,018.21x = 2,480,288,424.11
  5. Step 5: Solve for x
    x = 2,480,288,424.11/57,018.21
  6. Step 6: Final answer
    x = 43,499.93

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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.