Home / 84,386.16-116,347.05-54,118.08

Finding the Fourth Proportional to 84,386.16, 116,347.05 and 54,118.08

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Solution

The fourth proportional to 84,386.16, 116,347.05 and 54,118.08 is: 74,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,386.16 : 116,347.05 = 54,118.08 : x
  2. Step 2: Convert to fraction form
    84,386.16/116,347.05 = 54,118.08/x
  3. Step 3: Cross multiply
    84,386.16x = 116,347.05 × 54,118.08
  4. Step 4: Simplify right side
    84,386.16x = 6,296,478,959.66
  5. Step 5: Solve for x
    x = 6,296,478,959.66/84,386.16
  6. Step 6: Final answer
    x = 74,615.07

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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.