Home / 72,416.39-99,938.57-40,595.51

Finding the Fourth Proportional to 72,416.39, 99,938.57 and 40,595.51

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Solution

The fourth proportional to 72,416.39, 99,938.57 and 40,595.51 is: 56,024.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,416.39 : 99,938.57 = 40,595.51 : x
  2. Step 2: Convert to fraction form
    72,416.39/99,938.57 = 40,595.51/x
  3. Step 3: Cross multiply
    72,416.39x = 99,938.57 × 40,595.51
  4. Step 4: Simplify right side
    72,416.39x = 4,057,057,217.82
  5. Step 5: Solve for x
    x = 4,057,057,217.82/72,416.39
  6. Step 6: Final answer
    x = 56,024.02

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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.