Home / 87,895.13-121,295.32-47,608.77

Finding the Fourth Proportional to 87,895.13, 121,295.32 and 47,608.77

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Solution

The fourth proportional to 87,895.13, 121,295.32 and 47,608.77 is: 65,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,895.13 : 121,295.32 = 47,608.77 : x
  2. Step 2: Convert to fraction form
    87,895.13/121,295.32 = 47,608.77/x
  3. Step 3: Cross multiply
    87,895.13x = 121,295.32 × 47,608.77
  4. Step 4: Simplify right side
    87,895.13x = 5,774,720,645.51
  5. Step 5: Solve for x
    x = 5,774,720,645.51/87,895.13
  6. Step 6: Final answer
    x = 65,700.12

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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.