Home / 57,036.12-78,710.34-31,544.16

Finding the Fourth Proportional to 57,036.12, 78,710.34 and 31,544.16

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Solution

The fourth proportional to 57,036.12, 78,710.34 and 31,544.16 is: 43,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.12 : 78,710.34 = 31,544.16 : x
  2. Step 2: Convert to fraction form
    57,036.12/78,710.34 = 31,544.16/x
  3. Step 3: Cross multiply
    57,036.12x = 78,710.34 × 31,544.16
  4. Step 4: Simplify right side
    57,036.12x = 2,482,851,558.61
  5. Step 5: Solve for x
    x = 2,482,851,558.61/57,036.12
  6. Step 6: Final answer
    x = 43,531.21

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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.