Home / 72,750.09-100,408.91-45,538.82

Finding the Fourth Proportional to 72,750.09, 100,408.91 and 45,538.82

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Solution

The fourth proportional to 72,750.09, 100,408.91 and 45,538.82 is: 62,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,750.09 : 100,408.91 = 45,538.82 : x
  2. Step 2: Convert to fraction form
    72,750.09/100,408.91 = 45,538.82/x
  3. Step 3: Cross multiply
    72,750.09x = 100,408.91 × 45,538.82
  4. Step 4: Simplify right side
    72,750.09x = 4,572,502,549.15
  5. Step 5: Solve for x
    x = 4,572,502,549.15/72,750.09
  6. Step 6: Final answer
    x = 62,852.19

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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.