Home / 87,445.19-120,671.73-49,206.87

Finding the Fourth Proportional to 87,445.19, 120,671.73 and 49,206.87

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Solution

The fourth proportional to 87,445.19, 120,671.73 and 49,206.87 is: 67,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.19 : 120,671.73 = 49,206.87 : x
  2. Step 2: Convert to fraction form
    87,445.19/120,671.73 = 49,206.87/x
  3. Step 3: Cross multiply
    87,445.19x = 120,671.73 × 49,206.87
  4. Step 4: Simplify right side
    87,445.19x = 5,937,878,130.79
  5. Step 5: Solve for x
    x = 5,937,878,130.79/87,445.19
  6. Step 6: Final answer
    x = 67,904.00

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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.