Home / 88,118.19-121,565.75-56,280.33

Finding the Fourth Proportional to 88,118.19, 121,565.75 and 56,280.33

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Solution

The fourth proportional to 88,118.19, 121,565.75 and 56,280.33 is: 77,643.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,118.19 : 121,565.75 = 56,280.33 : x
  2. Step 2: Convert to fraction form
    88,118.19/121,565.75 = 56,280.33/x
  3. Step 3: Cross multiply
    88,118.19x = 121,565.75 × 56,280.33
  4. Step 4: Simplify right side
    88,118.19x = 6,841,760,245.30
  5. Step 5: Solve for x
    x = 6,841,760,245.30/88,118.19
  6. Step 6: Final answer
    x = 77,643.00

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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.