Home / 83,454.48-115,133.40-47,637.36

Finding the Fourth Proportional to 83,454.48, 115,133.40 and 47,637.36

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Solution

The fourth proportional to 83,454.48, 115,133.40 and 47,637.36 is: 65,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,454.48 : 115,133.40 = 47,637.36 : x
  2. Step 2: Convert to fraction form
    83,454.48/115,133.40 = 47,637.36/x
  3. Step 3: Cross multiply
    83,454.48x = 115,133.40 × 47,637.36
  4. Step 4: Simplify right side
    83,454.48x = 5,484,651,223.82
  5. Step 5: Solve for x
    x = 5,484,651,223.82/83,454.48
  6. Step 6: Final answer
    x = 65,720.27

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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.