Home / 87,904.07-121,307.51-47,618.00

Finding the Fourth Proportional to 87,904.07, 121,307.51 and 47,618.00

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Solution

The fourth proportional to 87,904.07, 121,307.51 and 47,618.00 is: 65,712.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,904.07 : 121,307.51 = 47,618.00 : x
  2. Step 2: Convert to fraction form
    87,904.07/121,307.51 = 47,618.00/x
  3. Step 3: Cross multiply
    87,904.07x = 121,307.51 × 47,618.00
  4. Step 4: Simplify right side
    87,904.07x = 5,776,420,334.49
  5. Step 5: Solve for x
    x = 5,776,420,334.49/87,904.07
  6. Step 6: Final answer
    x = 65,712.77

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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.