Home / 77,545.10-115,792.37-61,570.89

Finding the Fourth Proportional to 77,545.10, 115,792.37 and 61,570.89

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Solution

The fourth proportional to 77,545.10, 115,792.37 and 61,570.89 is: 91,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,545.10 : 115,792.37 = 61,570.89 : x
  2. Step 2: Convert to fraction form
    77,545.10/115,792.37 = 61,570.89/x
  3. Step 3: Cross multiply
    77,545.10x = 115,792.37 × 61,570.89
  4. Step 4: Simplify right side
    77,545.10x = 7,129,438,543.22
  5. Step 5: Solve for x
    x = 7,129,438,543.22/77,545.10
  6. Step 6: Final answer
    x = 91,939.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.