Home / 81,646.98-112,666.60-45,830.07

Finding the Fourth Proportional to 81,646.98, 112,666.60 and 45,830.07

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Solution

The fourth proportional to 81,646.98, 112,666.60 and 45,830.07 is: 63,242.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,646.98 : 112,666.60 = 45,830.07 : x
  2. Step 2: Convert to fraction form
    81,646.98/112,666.60 = 45,830.07/x
  3. Step 3: Cross multiply
    81,646.98x = 112,666.60 × 45,830.07
  4. Step 4: Simplify right side
    81,646.98x = 5,163,518,164.66
  5. Step 5: Solve for x
    x = 5,163,518,164.66/81,646.98
  6. Step 6: Final answer
    x = 63,242.00

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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.