Home / 84,619.90-116,828.64-54,457.76

Finding the Fourth Proportional to 84,619.90, 116,828.64 and 54,457.76

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Solution

The fourth proportional to 84,619.90, 116,828.64 and 54,457.76 is: 75,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.90 : 116,828.64 = 54,457.76 : x
  2. Step 2: Convert to fraction form
    84,619.90/116,828.64 = 54,457.76/x
  3. Step 3: Cross multiply
    84,619.90x = 116,828.64 × 54,457.76
  4. Step 4: Simplify right side
    84,619.90x = 6,362,226,038.25
  5. Step 5: Solve for x
    x = 6,362,226,038.25/84,619.90
  6. Step 6: Final answer
    x = 75,185.93

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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.