Home / 56,840.07-78,437.49-31,347.51

Finding the Fourth Proportional to 56,840.07, 78,437.49 and 31,347.51

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Solution

The fourth proportional to 56,840.07, 78,437.49 and 31,347.51 is: 43,258.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,840.07 : 78,437.49 = 31,347.51 : x
  2. Step 2: Convert to fraction form
    56,840.07/78,437.49 = 31,347.51/x
  3. Step 3: Cross multiply
    56,840.07x = 78,437.49 × 31,347.51
  4. Step 4: Simplify right side
    56,840.07x = 2,458,820,002.15
  5. Step 5: Solve for x
    x = 2,458,820,002.15/56,840.07
  6. Step 6: Final answer
    x = 43,258.57

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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.