Home / 81,312.28-112,215.65-45,501.98

Finding the Fourth Proportional to 81,312.28, 112,215.65 and 45,501.98

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Solution

The fourth proportional to 81,312.28, 112,215.65 and 45,501.98 is: 62,795.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,312.28 : 112,215.65 = 45,501.98 : x
  2. Step 2: Convert to fraction form
    81,312.28/112,215.65 = 45,501.98/x
  3. Step 3: Cross multiply
    81,312.28x = 112,215.65 × 45,501.98
  4. Step 4: Simplify right side
    81,312.28x = 5,106,033,473.40
  5. Step 5: Solve for x
    x = 5,106,033,473.40/81,312.28
  6. Step 6: Final answer
    x = 62,795.36

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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.