Home / 77,038.80-106,307.48-42,582.08

Finding the Fourth Proportional to 77,038.80, 106,307.48 and 42,582.08

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Solution

The fourth proportional to 77,038.80, 106,307.48 and 42,582.08 is: 58,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,038.80 : 106,307.48 = 42,582.08 : x
  2. Step 2: Convert to fraction form
    77,038.80/106,307.48 = 42,582.08/x
  3. Step 3: Cross multiply
    77,038.80x = 106,307.48 × 42,582.08
  4. Step 4: Simplify right side
    77,038.80x = 4,526,792,873.51
  5. Step 5: Solve for x
    x = 4,526,792,873.51/77,038.80
  6. Step 6: Final answer
    x = 58,759.91

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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.