Home / 65,130.48-89,920.38-49,994.16

Finding the Fourth Proportional to 65,130.48, 89,920.38 and 49,994.16

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Solution

The fourth proportional to 65,130.48, 89,920.38 and 49,994.16 is: 69,022.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,130.48 : 89,920.38 = 49,994.16 : x
  2. Step 2: Convert to fraction form
    65,130.48/89,920.38 = 49,994.16/x
  3. Step 3: Cross multiply
    65,130.48x = 89,920.38 × 49,994.16
  4. Step 4: Simplify right side
    65,130.48x = 4,495,493,864.98
  5. Step 5: Solve for x
    x = 4,495,493,864.98/65,130.48
  6. Step 6: Final answer
    x = 69,022.89

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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.