Home / 76,537.09-105,617.90-42,545.51

Finding the Fourth Proportional to 76,537.09, 105,617.90 and 42,545.51

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Solution

The fourth proportional to 76,537.09, 105,617.90 and 42,545.51 is: 58,710.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,537.09 : 105,617.90 = 42,545.51 : x
  2. Step 2: Convert to fraction form
    76,537.09/105,617.90 = 42,545.51/x
  3. Step 3: Cross multiply
    76,537.09x = 105,617.90 × 42,545.51
  4. Step 4: Simplify right side
    76,537.09x = 4,493,566,679.81
  5. Step 5: Solve for x
    x = 4,493,566,679.81/76,537.09
  6. Step 6: Final answer
    x = 58,710.97

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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.