Home / 88,348.32-121,752.72-63,154.08

Finding the Fourth Proportional to 88,348.32, 121,752.72 and 63,154.08

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Solution

The fourth proportional to 88,348.32, 121,752.72 and 63,154.08 is: 87,032.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,348.32 : 121,752.72 = 63,154.08 : x
  2. Step 2: Convert to fraction form
    88,348.32/121,752.72 = 63,154.08/x
  3. Step 3: Cross multiply
    88,348.32x = 121,752.72 × 63,154.08
  4. Step 4: Simplify right side
    88,348.32x = 7,689,181,019.10
  5. Step 5: Solve for x
    x = 7,689,181,019.10/88,348.32
  6. Step 6: Final answer
    x = 87,032.57

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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.