Home / 56,507.04-77,979.76-31,356.56

Finding the Fourth Proportional to 56,507.04, 77,979.76 and 31,356.56

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Solution

The fourth proportional to 56,507.04, 77,979.76 and 31,356.56 is: 43,272.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,507.04 : 77,979.76 = 31,356.56 : x
  2. Step 2: Convert to fraction form
    56,507.04/77,979.76 = 31,356.56/x
  3. Step 3: Cross multiply
    56,507.04x = 77,979.76 × 31,356.56
  4. Step 4: Simplify right side
    56,507.04x = 2,445,177,023.23
  5. Step 5: Solve for x
    x = 2,445,177,023.23/56,507.04
  6. Step 6: Final answer
    x = 43,272.08

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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.