Home / 105,461.93-145,535.51-57,714.32

Finding the Fourth Proportional to 105,461.93, 145,535.51 and 57,714.32

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Solution

The fourth proportional to 105,461.93, 145,535.51 and 57,714.32 is: 79,644.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.93 : 145,535.51 = 57,714.32 : x
  2. Step 2: Convert to fraction form
    105,461.93/145,535.51 = 57,714.32/x
  3. Step 3: Cross multiply
    105,461.93x = 145,535.51 × 57,714.32
  4. Step 4: Simplify right side
    105,461.93x = 8,399,481,979.25
  5. Step 5: Solve for x
    x = 8,399,481,979.25/105,461.93
  6. Step 6: Final answer
    x = 79,644.69

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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.