Home / 84,403.40-116,445.96-51,686.60

Finding the Fourth Proportional to 84,403.40, 116,445.96 and 51,686.60

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Solution

The fourth proportional to 84,403.40, 116,445.96 and 51,686.60 is: 71,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,403.40 : 116,445.96 = 51,686.60 : x
  2. Step 2: Convert to fraction form
    84,403.40/116,445.96 = 51,686.60/x
  3. Step 3: Cross multiply
    84,403.40x = 116,445.96 × 51,686.60
  4. Step 4: Simplify right side
    84,403.40x = 6,018,695,756.14
  5. Step 5: Solve for x
    x = 6,018,695,756.14/84,403.40
  6. Step 6: Final answer
    x = 71,308.69

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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.