Home / 56,641.26-78,166.91-31,148.67

Finding the Fourth Proportional to 56,641.26, 78,166.91 and 31,148.67

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Solution

The fourth proportional to 56,641.26, 78,166.91 and 31,148.67 is: 42,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,641.26 : 78,166.91 = 31,148.67 : x
  2. Step 2: Convert to fraction form
    56,641.26/78,166.91 = 31,148.67/x
  3. Step 3: Cross multiply
    56,641.26x = 78,166.91 × 31,148.67
  4. Step 4: Simplify right side
    56,641.26x = 2,434,795,284.51
  5. Step 5: Solve for x
    x = 2,434,795,284.51/56,641.26
  6. Step 6: Final answer
    x = 42,986.25

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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.