Home / 87,885.51-121,281.39-47,598.35

Finding the Fourth Proportional to 87,885.51, 121,281.39 and 47,598.35

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Solution

The fourth proportional to 87,885.51, 121,281.39 and 47,598.35 is: 65,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,885.51 : 121,281.39 = 47,598.35 : x
  2. Step 2: Convert to fraction form
    87,885.51/121,281.39 = 47,598.35/x
  3. Step 3: Cross multiply
    87,885.51x = 121,281.39 × 47,598.35
  4. Step 4: Simplify right side
    87,885.51x = 5,772,793,443.30
  5. Step 5: Solve for x
    x = 5,772,793,443.30/87,885.51
  6. Step 6: Final answer
    x = 65,685.39

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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.