Home / 84,899.76-117,117.40-57,666.16

Finding the Fourth Proportional to 84,899.76, 117,117.40 and 57,666.16

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Solution

The fourth proportional to 84,899.76, 117,117.40 and 57,666.16 is: 79,549.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,899.76 : 117,117.40 = 57,666.16 : x
  2. Step 2: Convert to fraction form
    84,899.76/117,117.40 = 57,666.16/x
  3. Step 3: Cross multiply
    84,899.76x = 117,117.40 × 57,666.16
  4. Step 4: Simplify right side
    84,899.76x = 6,753,710,727.18
  5. Step 5: Solve for x
    x = 6,753,710,727.18/84,899.76
  6. Step 6: Final answer
    x = 79,549.23

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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.