Home / 85,897.47-118,539.78-64,349.04

Finding the Fourth Proportional to 85,897.47, 118,539.78 and 64,349.04

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Solution

The fourth proportional to 85,897.47, 118,539.78 and 64,349.04 is: 88,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,897.47 : 118,539.78 = 64,349.04 : x
  2. Step 2: Convert to fraction form
    85,897.47/118,539.78 = 64,349.04/x
  3. Step 3: Cross multiply
    85,897.47x = 118,539.78 × 64,349.04
  4. Step 4: Simplify right side
    85,897.47x = 7,627,921,044.81
  5. Step 5: Solve for x
    x = 7,627,921,044.81/85,897.47
  6. Step 6: Final answer
    x = 88,802.63

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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.