Home / 84,389.51-116,402.63-54,126.87

Finding the Fourth Proportional to 84,389.51, 116,402.63 and 54,126.87

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Solution

The fourth proportional to 84,389.51, 116,402.63 and 54,126.87 is: 74,659.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.51 : 116,402.63 = 54,126.87 : x
  2. Step 2: Convert to fraction form
    84,389.51/116,402.63 = 54,126.87/x
  3. Step 3: Cross multiply
    84,389.51x = 116,402.63 × 54,126.87
  4. Step 4: Simplify right side
    84,389.51x = 6,300,509,751.03
  5. Step 5: Solve for x
    x = 6,300,509,751.03/84,389.51
  6. Step 6: Final answer
    x = 74,659.87

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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.