Home / 56,128.51-77,455.41-33,455.81

Finding the Fourth Proportional to 56,128.51, 77,455.41 and 33,455.81

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Solution

The fourth proportional to 56,128.51, 77,455.41 and 33,455.81 is: 46,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128.51 : 77,455.41 = 33,455.81 : x
  2. Step 2: Convert to fraction form
    56,128.51/77,455.41 = 33,455.81/x
  3. Step 3: Cross multiply
    56,128.51x = 77,455.41 × 33,455.81
  4. Step 4: Simplify right side
    56,128.51x = 2,591,333,548.61
  5. Step 5: Solve for x
    x = 2,591,333,548.61/56,128.51
  6. Step 6: Final answer
    x = 46,167.87

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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.