Home / 83,615.04-115,387.26-47,316.12

Finding the Fourth Proportional to 83,615.04, 115,387.26 and 47,316.12

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Solution

The fourth proportional to 83,615.04, 115,387.26 and 47,316.12 is: 65,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,615.04 : 115,387.26 = 47,316.12 : x
  2. Step 2: Convert to fraction form
    83,615.04/115,387.26 = 47,316.12/x
  3. Step 3: Cross multiply
    83,615.04x = 115,387.26 × 47,316.12
  4. Step 4: Simplify right side
    83,615.04x = 5,459,677,440.63
  5. Step 5: Solve for x
    x = 5,459,677,440.63/83,615.04
  6. Step 6: Final answer
    x = 65,295.40

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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.