Home / 76,533.60-105,615.76-42,541.96

Finding the Fourth Proportional to 76,533.60, 105,615.76 and 42,541.96

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Solution

The fourth proportional to 76,533.60, 105,615.76 and 42,541.96 is: 58,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,533.60 : 105,615.76 = 42,541.96 : x
  2. Step 2: Convert to fraction form
    76,533.60/105,615.76 = 42,541.96/x
  3. Step 3: Cross multiply
    76,533.60x = 105,615.76 × 42,541.96
  4. Step 4: Simplify right side
    76,533.60x = 4,493,101,437.29
  5. Step 5: Solve for x
    x = 4,493,101,437.29/76,533.60
  6. Step 6: Final answer
    x = 58,707.57

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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.