Home / 76,670.40-105,802.67-42,677.76

Finding the Fourth Proportional to 76,670.40, 105,802.67 and 42,677.76

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Solution

The fourth proportional to 76,670.40, 105,802.67 and 42,677.76 is: 58,893.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,670.40 : 105,802.67 = 42,677.76 : x
  2. Step 2: Convert to fraction form
    76,670.40/105,802.67 = 42,677.76/x
  3. Step 3: Cross multiply
    76,670.40x = 105,802.67 × 42,677.76
  4. Step 4: Simplify right side
    76,670.40x = 4,515,421,163.50
  5. Step 5: Solve for x
    x = 4,515,421,163.50/76,670.40
  6. Step 6: Final answer
    x = 58,893.93

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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.