Home / 88,164.16-121,612.32-62,969.92

Finding the Fourth Proportional to 88,164.16, 121,612.32 and 62,969.92

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Solution

The fourth proportional to 88,164.16, 121,612.32 and 62,969.92 is: 86,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,164.16 : 121,612.32 = 62,969.92 : x
  2. Step 2: Convert to fraction form
    88,164.16/121,612.32 = 62,969.92/x
  3. Step 3: Cross multiply
    88,164.16x = 121,612.32 × 62,969.92
  4. Step 4: Simplify right side
    88,164.16x = 7,657,918,061.41
  5. Step 5: Solve for x
    x = 7,657,918,061.41/88,164.16
  6. Step 6: Final answer
    x = 86,859.76

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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.