Home / 83,492.19-115,222.16-47,681.55

Finding the Fourth Proportional to 83,492.19, 115,222.16 and 47,681.55

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Solution

The fourth proportional to 83,492.19, 115,222.16 and 47,681.55 is: 65,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,492.19 : 115,222.16 = 47,681.55 : x
  2. Step 2: Convert to fraction form
    83,492.19/115,222.16 = 47,681.55/x
  3. Step 3: Cross multiply
    83,492.19x = 115,222.16 × 47,681.55
  4. Step 4: Simplify right side
    83,492.19x = 5,493,971,302.35
  5. Step 5: Solve for x
    x = 5,493,971,302.35/83,492.19
  6. Step 6: Final answer
    x = 65,802.22

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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.