Home / 85,928.22-128,943.36-46,484.46

Finding the Fourth Proportional to 85,928.22, 128,943.36 and 46,484.46

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Solution

The fourth proportional to 85,928.22, 128,943.36 and 46,484.46 is: 69,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,928.22 : 128,943.36 = 46,484.46 : x
  2. Step 2: Convert to fraction form
    85,928.22/128,943.36 = 46,484.46/x
  3. Step 3: Cross multiply
    85,928.22x = 128,943.36 × 46,484.46
  4. Step 4: Simplify right side
    85,928.22x = 5,993,862,460.19
  5. Step 5: Solve for x
    x = 5,993,862,460.19/85,928.22
  6. Step 6: Final answer
    x = 69,754.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.