Home / 56,412-77,848.56-31,263.12

Finding the Fourth Proportional to 56,412, 77,848.56 and 31,263.12

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Solution

The fourth proportional to 56,412, 77,848.56 and 31,263.12 is: 43,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,412 : 77,848.56 = 31,263.12 : x
  2. Step 2: Convert to fraction form
    56,412/77,848.56 = 31,263.12/x
  3. Step 3: Cross multiply
    56,412x = 77,848.56 × 31,263.12
  4. Step 4: Simplify right side
    56,412x = 2,433,788,873.11
  5. Step 5: Solve for x
    x = 2,433,788,873.11/56,412
  6. Step 6: Final answer
    x = 43,143.11

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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.