Home / 81,677.02-112,713.84-45,870.16

Finding the Fourth Proportional to 81,677.02, 112,713.84 and 45,870.16

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Solution

The fourth proportional to 81,677.02, 112,713.84 and 45,870.16 is: 63,300.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,677.02 : 112,713.84 = 45,870.16 : x
  2. Step 2: Convert to fraction form
    81,677.02/112,713.84 = 45,870.16/x
  3. Step 3: Cross multiply
    81,677.02x = 112,713.84 × 45,870.16
  4. Step 4: Simplify right side
    81,677.02x = 5,170,201,875.01
  5. Step 5: Solve for x
    x = 5,170,201,875.01/81,677.02
  6. Step 6: Final answer
    x = 63,300.57

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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.