Home / 84,389.76-116,431.56-56,100.24

Finding the Fourth Proportional to 84,389.76, 116,431.56 and 56,100.24

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Solution

The fourth proportional to 84,389.76, 116,431.56 and 56,100.24 is: 77,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.76 : 116,431.56 = 56,100.24 : x
  2. Step 2: Convert to fraction form
    84,389.76/116,431.56 = 56,100.24/x
  3. Step 3: Cross multiply
    84,389.76x = 116,431.56 × 56,100.24
  4. Step 4: Simplify right side
    84,389.76x = 6,531,838,459.57
  5. Step 5: Solve for x
    x = 6,531,838,459.57/84,389.76
  6. Step 6: Final answer
    x = 77,400.84

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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.