Home / 87,090.04-130,603.71-30,148.47

Finding the Fourth Proportional to 87,090.04, 130,603.71 and 30,148.47

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Solution

The fourth proportional to 87,090.04, 130,603.71 and 30,148.47 is: 45,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,090.04 : 130,603.71 = 30,148.47 : x
  2. Step 2: Convert to fraction form
    87,090.04/130,603.71 = 30,148.47/x
  3. Step 3: Cross multiply
    87,090.04x = 130,603.71 × 30,148.47
  4. Step 4: Simplify right side
    87,090.04x = 3,937,502,032.82
  5. Step 5: Solve for x
    x = 3,937,502,032.82/87,090.04
  6. Step 6: Final answer
    x = 45,211.85

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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.