Home / 48,038.09-66,238.64-31,019.99

Finding the Fourth Proportional to 48,038.09, 66,238.64 and 31,019.99

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Solution

The fourth proportional to 48,038.09, 66,238.64 and 31,019.99 is: 42,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,038.09 : 66,238.64 = 31,019.99 : x
  2. Step 2: Convert to fraction form
    48,038.09/66,238.64 = 31,019.99/x
  3. Step 3: Cross multiply
    48,038.09x = 66,238.64 × 31,019.99
  4. Step 4: Simplify right side
    48,038.09x = 2,054,721,950.41
  5. Step 5: Solve for x
    x = 2,054,721,950.41/48,038.09
  6. Step 6: Final answer
    x = 42,772.77

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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.