Home / 315,058.47-472,445.55-90,367.35

Finding the Fourth Proportional to 315,058.47, 472,445.55 and 90,367.35

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Solution

The fourth proportional to 315,058.47, 472,445.55 and 90,367.35 is: 135,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,058.47 : 472,445.55 = 90,367.35 : x
  2. Step 2: Convert to fraction form
    315,058.47/472,445.55 = 90,367.35/x
  3. Step 3: Cross multiply
    315,058.47x = 472,445.55 × 90,367.35
  4. Step 4: Simplify right side
    315,058.47x = 42,693,652,372.79
  5. Step 5: Solve for x
    x = 42,693,652,372.79/315,058.47
  6. Step 6: Final answer
    x = 135,510.25

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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.