Home / 72,549.10-100,132.68-45,673.57

Finding the Fourth Proportional to 72,549.10, 100,132.68 and 45,673.57

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Solution

The fourth proportional to 72,549.10, 100,132.68 and 45,673.57 is: 63,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,549.10 : 100,132.68 = 45,673.57 : x
  2. Step 2: Convert to fraction form
    72,549.10/100,132.68 = 45,673.57/x
  3. Step 3: Cross multiply
    72,549.10x = 100,132.68 × 45,673.57
  4. Step 4: Simplify right side
    72,549.10x = 4,573,416,969.27
  5. Step 5: Solve for x
    x = 4,573,416,969.27/72,549.10
  6. Step 6: Final answer
    x = 63,038.92

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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.