Home / 56,834.77-78,430.19-31,342.21

Finding the Fourth Proportional to 56,834.77, 78,430.19 and 31,342.21

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Solution

The fourth proportional to 56,834.77, 78,430.19 and 31,342.21 is: 43,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,834.77 : 78,430.19 = 31,342.21 : x
  2. Step 2: Convert to fraction form
    56,834.77/78,430.19 = 31,342.21/x
  3. Step 3: Cross multiply
    56,834.77x = 78,430.19 × 31,342.21
  4. Step 4: Simplify right side
    56,834.77x = 2,458,175,328.61
  5. Step 5: Solve for x
    x = 2,458,175,328.61/56,834.77
  6. Step 6: Final answer
    x = 43,251.26

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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.