Home / 76,875.81-106,088.45-43,341.57

Finding the Fourth Proportional to 76,875.81, 106,088.45 and 43,341.57

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Solution

The fourth proportional to 76,875.81, 106,088.45 and 43,341.57 is: 59,811.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,875.81 : 106,088.45 = 43,341.57 : x
  2. Step 2: Convert to fraction form
    76,875.81/106,088.45 = 43,341.57/x
  3. Step 3: Cross multiply
    76,875.81x = 106,088.45 × 43,341.57
  4. Step 4: Simplify right side
    76,875.81x = 4,598,039,765.16
  5. Step 5: Solve for x
    x = 4,598,039,765.16/76,875.81
  6. Step 6: Final answer
    x = 59,811.27

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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.