Home / 84,303.79-116,204.10-57,071.29

Finding the Fourth Proportional to 84,303.79, 116,204.10 and 57,071.29

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Solution

The fourth proportional to 84,303.79, 116,204.10 and 57,071.29 is: 78,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,303.79 : 116,204.10 = 57,071.29 : x
  2. Step 2: Convert to fraction form
    84,303.79/116,204.10 = 57,071.29/x
  3. Step 3: Cross multiply
    84,303.79x = 116,204.10 × 57,071.29
  4. Step 4: Simplify right side
    84,303.79x = 6,631,917,890.29
  5. Step 5: Solve for x
    x = 6,631,917,890.29/84,303.79
  6. Step 6: Final answer
    x = 78,666.90

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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.