Home / 65,313.19-90,151.37-42,655.60

Finding the Fourth Proportional to 65,313.19, 90,151.37 and 42,655.60

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Solution

The fourth proportional to 65,313.19, 90,151.37 and 42,655.60 is: 58,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,313.19 : 90,151.37 = 42,655.60 : x
  2. Step 2: Convert to fraction form
    65,313.19/90,151.37 = 42,655.60/x
  3. Step 3: Cross multiply
    65,313.19x = 90,151.37 × 42,655.60
  4. Step 4: Simplify right side
    65,313.19x = 3,845,460,778.17
  5. Step 5: Solve for x
    x = 3,845,460,778.17/65,313.19
  6. Step 6: Final answer
    x = 58,877.25

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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.