Home / 61,678.05-85,117.36-37,470.77

Finding the Fourth Proportional to 61,678.05, 85,117.36 and 37,470.77

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Solution

The fourth proportional to 61,678.05, 85,117.36 and 37,470.77 is: 51,710.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,678.05 : 85,117.36 = 37,470.77 : x
  2. Step 2: Convert to fraction form
    61,678.05/85,117.36 = 37,470.77/x
  3. Step 3: Cross multiply
    61,678.05x = 85,117.36 × 37,470.77
  4. Step 4: Simplify right side
    61,678.05x = 3,189,413,019.57
  5. Step 5: Solve for x
    x = 3,189,413,019.57/61,678.05
  6. Step 6: Final answer
    x = 51,710.67

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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.