Home / 64,875.20-97,312.80-54,377.60

Finding the Fourth Proportional to 64,875.20, 97,312.80 and 54,377.60

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Solution

The fourth proportional to 64,875.20, 97,312.80 and 54,377.60 is: 81,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,875.20 : 97,312.80 = 54,377.60 : x
  2. Step 2: Convert to fraction form
    64,875.20/97,312.80 = 54,377.60/x
  3. Step 3: Cross multiply
    64,875.20x = 97,312.80 × 54,377.60
  4. Step 4: Simplify right side
    64,875.20x = 5,291,636,513.28
  5. Step 5: Solve for x
    x = 5,291,636,513.28/64,875.20
  6. Step 6: Final answer
    x = 81,566.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.