Home / 93,411.04-128,910.08-53,130.60

Finding the Fourth Proportional to 93,411.04, 128,910.08 and 53,130.60

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Solution

The fourth proportional to 93,411.04, 128,910.08 and 53,130.60 is: 73,321.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,411.04 : 128,910.08 = 53,130.60 : x
  2. Step 2: Convert to fraction form
    93,411.04/128,910.08 = 53,130.60/x
  3. Step 3: Cross multiply
    93,411.04x = 128,910.08 × 53,130.60
  4. Step 4: Simplify right side
    93,411.04x = 6,849,070,218.72
  5. Step 5: Solve for x
    x = 6,849,070,218.72/93,411.04
  6. Step 6: Final answer
    x = 73,321.85

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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.