Home / 85,632.68-118,159.26-53,779.08

Finding the Fourth Proportional to 85,632.68, 118,159.26 and 53,779.08

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Solution

The fourth proportional to 85,632.68, 118,159.26 and 53,779.08 is: 74,206.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,632.68 : 118,159.26 = 53,779.08 : x
  2. Step 2: Convert to fraction form
    85,632.68/118,159.26 = 53,779.08/x
  3. Step 3: Cross multiply
    85,632.68x = 118,159.26 × 53,779.08
  4. Step 4: Simplify right side
    85,632.68x = 6,354,496,296.28
  5. Step 5: Solve for x
    x = 6,354,496,296.28/85,632.68
  6. Step 6: Final answer
    x = 74,206.44

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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.