Home / 81,374.16-112,300.20-45,557.04

Finding the Fourth Proportional to 81,374.16, 112,300.20 and 45,557.04

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Solution

The fourth proportional to 81,374.16, 112,300.20 and 45,557.04 is: 62,870.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.16 : 112,300.20 = 45,557.04 : x
  2. Step 2: Convert to fraction form
    81,374.16/112,300.20 = 45,557.04/x
  3. Step 3: Cross multiply
    81,374.16x = 112,300.20 × 45,557.04
  4. Step 4: Simplify right side
    81,374.16x = 5,116,064,703.41
  5. Step 5: Solve for x
    x = 5,116,064,703.41/81,374.16
  6. Step 6: Final answer
    x = 62,870.88

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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.