Home / 48,189.51-66,485.43-31,215.35

Finding the Fourth Proportional to 48,189.51, 66,485.43 and 31,215.35

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Solution

The fourth proportional to 48,189.51, 66,485.43 and 31,215.35 is: 43,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,189.51 : 66,485.43 = 31,215.35 : x
  2. Step 2: Convert to fraction form
    48,189.51/66,485.43 = 31,215.35/x
  3. Step 3: Cross multiply
    48,189.51x = 66,485.43 × 31,215.35
  4. Step 4: Simplify right side
    48,189.51x = 2,075,365,967.35
  5. Step 5: Solve for x
    x = 2,075,365,967.35/48,189.51
  6. Step 6: Final answer
    x = 43,066.76

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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.