Home / 84,814.04-117,153.60-64,547.84

Finding the Fourth Proportional to 84,814.04, 117,153.60 and 64,547.84

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Solution

The fourth proportional to 84,814.04, 117,153.60 and 64,547.84 is: 89,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,814.04 : 117,153.60 = 64,547.84 : x
  2. Step 2: Convert to fraction form
    84,814.04/117,153.60 = 64,547.84/x
  3. Step 3: Cross multiply
    84,814.04x = 117,153.60 × 64,547.84
  4. Step 4: Simplify right side
    84,814.04x = 7,562,011,828.22
  5. Step 5: Solve for x
    x = 7,562,011,828.22/84,814.04
  6. Step 6: Final answer
    x = 89,159.91

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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.