Home / 65,430.39-98,124.93-21,047.25

Finding the Fourth Proportional to 65,430.39, 98,124.93 and 21,047.25

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Solution

The fourth proportional to 65,430.39, 98,124.93 and 21,047.25 is: 31,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,430.39 : 98,124.93 = 21,047.25 : x
  2. Step 2: Convert to fraction form
    65,430.39/98,124.93 = 21,047.25/x
  3. Step 3: Cross multiply
    65,430.39x = 98,124.93 × 21,047.25
  4. Step 4: Simplify right side
    65,430.39x = 2,065,259,932.94
  5. Step 5: Solve for x
    x = 2,065,259,932.94/65,430.39
  6. Step 6: Final answer
    x = 31,564.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.