Home / 58,728.84-81,045.36-31,870.65

Finding the Fourth Proportional to 58,728.84, 81,045.36 and 31,870.65

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Solution

The fourth proportional to 58,728.84, 81,045.36 and 31,870.65 is: 43,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,728.84 : 81,045.36 = 31,870.65 : x
  2. Step 2: Convert to fraction form
    58,728.84/81,045.36 = 31,870.65/x
  3. Step 3: Cross multiply
    58,728.84x = 81,045.36 × 31,870.65
  4. Step 4: Simplify right side
    58,728.84x = 2,582,968,302.68
  5. Step 5: Solve for x
    x = 2,582,968,302.68/58,728.84
  6. Step 6: Final answer
    x = 43,981.26

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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.