Home / 88,159.80-121,681.68-50,455.92

Finding the Fourth Proportional to 88,159.80, 121,681.68 and 50,455.92

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Solution

The fourth proportional to 88,159.80, 121,681.68 and 50,455.92 is: 69,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,159.80 : 121,681.68 = 50,455.92 : x
  2. Step 2: Convert to fraction form
    88,159.80/121,681.68 = 50,455.92/x
  3. Step 3: Cross multiply
    88,159.80x = 121,681.68 × 50,455.92
  4. Step 4: Simplify right side
    88,159.80x = 6,139,561,111.55
  5. Step 5: Solve for x
    x = 6,139,561,111.55/88,159.80
  6. Step 6: Final answer
    x = 69,641.28

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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.