Home / 92,765.16-128,015.96-52,478.07

Finding the Fourth Proportional to 92,765.16, 128,015.96 and 52,478.07

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Solution

The fourth proportional to 92,765.16, 128,015.96 and 52,478.07 is: 72,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,765.16 : 128,015.96 = 52,478.07 : x
  2. Step 2: Convert to fraction form
    92,765.16/128,015.96 = 52,478.07/x
  3. Step 3: Cross multiply
    92,765.16x = 128,015.96 × 52,478.07
  4. Step 4: Simplify right side
    92,765.16x = 6,718,030,247.61
  5. Step 5: Solve for x
    x = 6,718,030,247.61/92,765.16
  6. Step 6: Final answer
    x = 72,419.76

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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.