Home / 88,065.76-121,501.12-50,313.28

Finding the Fourth Proportional to 88,065.76, 121,501.12 and 50,313.28

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Solution

The fourth proportional to 88,065.76, 121,501.12 and 50,313.28 is: 69,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,065.76 : 121,501.12 = 50,313.28 : x
  2. Step 2: Convert to fraction form
    88,065.76/121,501.12 = 50,313.28/x
  3. Step 3: Cross multiply
    88,065.76x = 121,501.12 × 50,313.28
  4. Step 4: Simplify right side
    88,065.76x = 6,113,119,870.87
  5. Step 5: Solve for x
    x = 6,113,119,870.87/88,065.76
  6. Step 6: Final answer
    x = 69,415.40

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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.