Home / 65,220.23-89,329.55-61,390.25

Finding the Fourth Proportional to 65,220.23, 89,329.55 and 61,390.25

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Solution

The fourth proportional to 65,220.23, 89,329.55 and 61,390.25 is: 84,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,220.23 : 89,329.55 = 61,390.25 : x
  2. Step 2: Convert to fraction form
    65,220.23/89,329.55 = 61,390.25/x
  3. Step 3: Cross multiply
    65,220.23x = 89,329.55 × 61,390.25
  4. Step 4: Simplify right side
    65,220.23x = 5,483,963,337.04
  5. Step 5: Solve for x
    x = 5,483,963,337.04/65,220.23
  6. Step 6: Final answer
    x = 84,083.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.