Home / 56,238.24-77,603.76-31,087.20

Finding the Fourth Proportional to 56,238.24, 77,603.76 and 31,087.20

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Solution

The fourth proportional to 56,238.24, 77,603.76 and 31,087.20 is: 42,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,238.24 : 77,603.76 = 31,087.20 : x
  2. Step 2: Convert to fraction form
    56,238.24/77,603.76 = 31,087.20/x
  3. Step 3: Cross multiply
    56,238.24x = 77,603.76 × 31,087.20
  4. Step 4: Simplify right side
    56,238.24x = 2,412,483,607.87
  5. Step 5: Solve for x
    x = 2,412,483,607.87/56,238.24
  6. Step 6: Final answer
    x = 42,897.57

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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.