Home / 55,867.60-77,097.36-30,717.12

Finding the Fourth Proportional to 55,867.60, 77,097.36 and 30,717.12

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Solution

The fourth proportional to 55,867.60, 77,097.36 and 30,717.12 is: 42,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,867.60 : 77,097.36 = 30,717.12 : x
  2. Step 2: Convert to fraction form
    55,867.60/77,097.36 = 30,717.12/x
  3. Step 3: Cross multiply
    55,867.60x = 77,097.36 × 30,717.12
  4. Step 4: Simplify right side
    55,867.60x = 2,368,208,858.80
  5. Step 5: Solve for x
    x = 2,368,208,858.80/55,867.60
  6. Step 6: Final answer
    x = 42,389.67

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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.