Home / 87,802.98-121,155.07-53,329.77

Finding the Fourth Proportional to 87,802.98, 121,155.07 and 53,329.77

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Solution

The fourth proportional to 87,802.98, 121,155.07 and 53,329.77 is: 73,587.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,802.98 : 121,155.07 = 53,329.77 : x
  2. Step 2: Convert to fraction form
    87,802.98/121,155.07 = 53,329.77/x
  3. Step 3: Cross multiply
    87,802.98x = 121,155.07 × 53,329.77
  4. Step 4: Simplify right side
    87,802.98x = 6,461,172,017.43
  5. Step 5: Solve for x
    x = 6,461,172,017.43/87,802.98
  6. Step 6: Final answer
    x = 73,587.16

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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.