Home / 77,206.55-106,543.76-43,215.12

Finding the Fourth Proportional to 77,206.55, 106,543.76 and 43,215.12

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Solution

The fourth proportional to 77,206.55, 106,543.76 and 43,215.12 is: 59,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,206.55 : 106,543.76 = 43,215.12 : x
  2. Step 2: Convert to fraction form
    77,206.55/106,543.76 = 43,215.12/x
  3. Step 3: Cross multiply
    77,206.55x = 106,543.76 × 43,215.12
  4. Step 4: Simplify right side
    77,206.55x = 4,604,301,157.58
  5. Step 5: Solve for x
    x = 4,604,301,157.58/77,206.55
  6. Step 6: Final answer
    x = 59,636.15

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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.