Home / 115,038.47-172,412.31-51,791.24

Finding the Fourth Proportional to 115,038.47, 172,412.31 and 51,791.24

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Solution

The fourth proportional to 115,038.47, 172,412.31 and 51,791.24 is: 77,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,038.47 : 172,412.31 = 51,791.24 : x
  2. Step 2: Convert to fraction form
    115,038.47/172,412.31 = 51,791.24/x
  3. Step 3: Cross multiply
    115,038.47x = 172,412.31 × 51,791.24
  4. Step 4: Simplify right side
    115,038.47x = 8,929,447,326.16
  5. Step 5: Solve for x
    x = 8,929,447,326.16/115,038.47
  6. Step 6: Final answer
    x = 77,621.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.