Home / 56,842.90-78,437.16-31,347.57

Finding the Fourth Proportional to 56,842.90, 78,437.16 and 31,347.57

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Solution

The fourth proportional to 56,842.90, 78,437.16 and 31,347.57 is: 43,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,842.90 : 78,437.16 = 31,347.57 : x
  2. Step 2: Convert to fraction form
    56,842.90/78,437.16 = 31,347.57/x
  3. Step 3: Cross multiply
    56,842.90x = 78,437.16 × 31,347.57
  4. Step 4: Simplify right side
    56,842.90x = 2,458,814,657.84
  5. Step 5: Solve for x
    x = 2,458,814,657.84/56,842.90
  6. Step 6: Final answer
    x = 43,256.32

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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.